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Eisboch July 12th 08 12:44 AM

Porsche Gas Mileage
 


In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch



DK July 12th 08 01:11 AM

Porsche Gas Mileage
 
Eisboch wrote:
In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch



I'd be very happy with 20mpg. My X5 4.8 has horrible gas mileage - 18
average. We did order the Z4 3.0si - not as a replacement - and it is
advertised as 18/27. It will be interesting to see what the real number
is.

Eisboch July 12th 08 01:21 AM

Porsche Gas Mileage
 

"DK" wrote in message
...
Eisboch wrote:
In these days of high fuel prices and being "green", I love it when
people smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I
entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display
read "28.9 mpg".
My "normal" average of combined around town and highway driving is
usually about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I
tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch



I'd be very happy with 20mpg. My X5 4.8 has horrible gas mileage - 18
average. We did order the Z4 3.0si - not as a replacement - and it is
advertised as 18/27. It will be interesting to see what the real number
is.


I think the Porsche's advantage is light weight, aerodynamics and an engine
that is basically loafing along at 75 mph.
It isn't even breathing hard, the turbos aren't doing anything and it's
operating at a fraction of it's capability.

Eisboch



Tim July 12th 08 01:23 AM

Porsche Gas Mileage
 
On Jul 11, 7:11*pm, DK wrote:
Eisboch wrote:
In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT *must be "terrible"
in terms of gas mileage.


Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. *I didn't do anything special in terms of driving
techniques ... just drove normally.


At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.


Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.


It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


Eisboch


I'd be very happy with 20mpg. *My X5 4.8 has horrible gas mileage - 18
average. *We did order the Z4 3.0si - not as a replacement - and it is
advertised as 18/27. *It will be interesting to see what the real number
is.- Hide quoted text -

- Show quoted text -


My '90 Grand Marquis (Colony Park) wagon will get 23-24 on the 4 lane
w/ cruise on 65. Use air and it drops to about 21 +/-

the wifes 2003 Chry Town and Country only gets about 23 w/air on and
65. So I figure that even though it's still lousy by todays standards,
I'm not doing so bad, besides. It will pull my boats

Eisboch July 12th 08 01:32 AM

Porsche Gas Mileage
 

"Tim" wrote in message
...

My '90 Grand Marquis (Colony Park) wagon will get 23-24 on the 4 lane
w/ cruise on 65. Use air and it drops to about 21 +/-

the wifes 2003 Chry Town and Country only gets about 23 w/air on and
65. So I figure that even though it's still lousy by todays standards,
I'm not doing so bad, besides. It will pull my boats

-------------------------

I tease Mrs. E. about her Navigator. The best it can do is around 12 mpg,
regardless of how light your foot is.
However, it *will* pull a boat or trailer.

It sorta cracks me up. Of all our vehicles, the Porsche, with the highest
horsepower and performance, gets the best fuel mileage. The Sprinter
(Mercedes diesel) RV gets second best, followed by the Ranger PU, her
Navigator, the old GTO and the old Ford. The boat comes in dead last.

Actually, the Harleys get the best mileage, come to think of it. I just
haven't done much riding this year yet.

Eisboch



Tim July 12th 08 01:38 AM

Porsche Gas Mileage
 
On Jul 11, 7:32*pm, "Eisboch" wrote:
"Tim" wrote in message


Actually, the Harleys get the best mileage, come to think of it. *I just
haven't done much riding this year yet.

Eisboch


maybe so, but the fuel to weight (not counting "protection") still
blows.


Tom G July 12th 08 04:35 AM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

"Tim" wrote in message
...

My '90 Grand Marquis (Colony Park) wagon will get 23-24 on the 4 lane
w/ cruise on 65. Use air and it drops to about 21 +/-

the wifes 2003 Chry Town and Country only gets about 23 w/air on and
65. So I figure that even though it's still lousy by todays standards,
I'm not doing so bad, besides. It will pull my boats

-------------------------

I tease Mrs. E. about her Navigator. The best it can do is around 12 mpg,
regardless of how light your foot is.
However, it *will* pull a boat or trailer.

It sorta cracks me up. Of all our vehicles, the Porsche, with the highest
horsepower and performance, gets the best fuel mileage. The Sprinter
(Mercedes diesel) RV gets second best, followed by the Ranger PU, her
Navigator, the old GTO and the old Ford. The boat comes in dead last.

Actually, the Harleys get the best mileage, come to think of it. I just
haven't done much riding this year yet.

Eisboch
Actually my boats get the best fuel mileage....but then they still have the
Rock River here in Winnebago Co., Il. closed. The DNR opened it last week
but the sheriff (wisely) issued a "no wake" limitation. That, along with
the fact that all of the boat ramps are still under water and closed,
effectively kept the river closed. Now, the rain, here and in Southern
Wisconsin has caused the DNR to close it completely again. Expected to go
back up 2 ft. in next couple of days. I'm afraid to see what additional
erosion my river bank has experienced.


Tom G.



GDSmith July 12th 08 12:07 PM

Porsche Gas Mileage
 
On Jul 11, 8:11*pm, DK wrote:

I'd be very happy with 20mpg. *My X5 4.8 has horrible gas mileage - 18
average. *We did order the Z4 3.0si - not as a replacement - and it is
advertised as 18/27. *It will be interesting to see what the real number
is.- Hide quoted text -

- Show quoted text -


I think this is the range that we're in. We have the Mercedes SLK-55
AMG (5.5L V8, 360hp) and it get about 20mpg regardless of where or how
it's driven (well, unless I get 'spirited' - then it DROPS.) Luckily
we have a Jetta TDI as our daily driver and that hits the 45-47mpg
range. I wouldn't want to have to drive the SLK (with the premium
gas) to work everyday !

----------------------------------
GDSmith
Harpers Ferry, WV

FOR SALE: 2003 Baja 242 Islander
http://ICanHelp56.homestead.com/Baja001.html

Eisboch July 12th 08 09:06 PM

Porsche Gas Mileage
 

wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:



In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I
entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch


You are doing about as well as I do in a 2 liter Honda Prelude (avg
about 23-24). I can squeeze 31-32 out of it if I use all the "Mobil
Gas Economy Run" tricks I know, not stuck in traffic and stay off the



Frankly, I am not sure I believe the computer. I just filled it up and will
check it the old fashioned way ..... mileage driven, gallons used.








interstate.




JimH[_2_] July 12th 08 09:19 PM

Porsche Gas Mileage
 
On Jul 11, 7:44*pm, "Eisboch" wrote:
In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT *must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. *I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch


For a highway only trip that is not surprising.. As you stated in
another reply to this thread that car is light and the body is
aerodynamically designed.

Let us know what the old fashioned (the method I use) method shows.

Vic Smith July 12th 08 10:16 PM

Porsche Gas Mileage
 
On Sat, 12 Jul 2008 13:19:45 -0700 (PDT), JimH
wrote:

On Jul 11, 7:44?pm, "Eisboch" wrote:
In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT ?must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. ?I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch


For a highway only trip that is not surprising.. As you stated in
another reply to this thread that car is light and the body is
aerodynamically designed.

Let us know what the old fashioned (the method I use) method shows.


It's all in how they engineer the gearing. Like Eisboch said, the
engine is loafing - and it's got the torque to loaf.
I'm guessing that's one reason pushrod cars like the GM's I drive
outdo the OHC Accords and Camrys in highway MPG - last I looked
anyway. I think the Impalas with the 3.4 (3.5?), which are heavier
and roomier than the competition beat them in highway MPG.
The GM lockup torque converter does wonders for milage starting at
about 35-40 mph. Not looking for an argument about pushrod vs OHC,
or claiming any special knowledge about it.
I agree on not putting complete trust in the computer generated MPG
figures. "Trust but verify."
Last year on the way to Florida in my '97 Lumina 3.1 I used the fill
up method during the trip. After a couple tanks at 65 mph cruise
control, no A/C , it was a hair below 32 mpg. I lost my self control
after that and was doing 75-85, with hilly/mountainous terrain to
boot. I checked again and it had dropped to about 30 mpg. I think I
did a final when I got home and it was about 29 mpg.
I don't have a good handle on the "city" commuting MPG because I never
checked it closely. Too variable and dependent on traffic conditions.
I'd guess about 20 mpg for what "city" driving we do, which doesn't
involve a lot of creeping and idling.

--Vic

D.Duck[_2_] July 12th 08 10:19 PM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:



In these days of high fuel prices and being "green", I love it when
people
smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I
entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display
read
"28.9 mpg".
My "normal" average of combined around town and highway driving is
usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I
tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

Eisboch


You are doing about as well as I do in a 2 liter Honda Prelude (avg
about 23-24). I can squeeze 31-32 out of it if I use all the "Mobil
Gas Economy Run" tricks I know, not stuck in traffic and stay off the



Frankly, I am not sure I believe the computer. I just filled it up and
will check it the old fashioned way ..... mileage driven, gallons used.








interstate.


I constantly check the gas mileage on both my Buick Lucernes. Both car
computers err to the high side between 0.3 and 1.1 MPG.

The error doesn't matter if the driving is around town or on the highway for
extended periods.



Short Wave Sportfishing[_2_] July 13th 08 02:10 AM

Porsche Gas Mileage
 
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:



In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT must be "terrible"
in terms of gas mileage.

Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. I didn't do anything special in terms of driving
techniques ... just drove normally.

At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.

Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


Doesn't surprise me in the least. It' s a properly engineered car
with engineered gearing and weight to horsepower ratios. Add in the
aero packages, the fact that it's properly balanced and you've got
efficient power application up the hoo hoo.

My 'Vette is an entirely different story. When I took the blower off
and downsized from twin 950 Holleys to single, put the rear end back
to street legal and changed over from street drag slicks to street
legal tires, the mileage went up marginally - from about 6 mpg to
maybe 10. I went from 645 hp on a dyno to just south of 400 hp.

Think it might help if I took the 3/4 cam and NOX out of it? :)

JimH[_2_] July 13th 08 02:52 AM

Porsche Gas Mileage
 
On Jul 12, 9:10*pm, Short Wave Sportfishing
wrote:
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT *must be "terrible"
in terms of gas mileage.


Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. *I didn't do anything special in terms of driving
techniques ... just drove normally.


At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.


Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.


It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


Doesn't surprise me in the least. *It' s a properly engineered car
with engineered gearing and weight to horsepower ratios. Add in the
aero packages, the fact that it's properly balanced and you've got
efficient power application up the hoo hoo.


As I already said.

DK July 13th 08 03:58 AM

Porsche Gas Mileage
 
Eisboch wrote:



Frankly, I am not sure I believe the computer. I just filled it up and will
check it the old fashioned way ..... mileage driven, gallons used.


I think I'm getting a bit more in the X5, too. I'll have to try that.

Have you ever run mid-grade in your German cars? I know the computers
will adjust and the fuel economy can decrease.

Eisboch July 13th 08 07:22 AM

Porsche Gas Mileage
 

"DK" wrote in message
...
Eisboch wrote:



Frankly, I am not sure I believe the computer. I just filled it up and
will check it the old fashioned way ..... mileage driven, gallons used.


I think I'm getting a bit more in the X5, too. I'll have to try that.

Have you ever run mid-grade in your German cars? I know the computers
will adjust and the fuel economy can decrease.




I never tried anything but "high test". When we had the BMW's, the price
of gas wasn't an issue, so there was no reason.
One downside of the Porsche is that it calls for 93 octane (minimum). The
only place I can get it is at Sunoco, who still carries 93 "Ultra". I've
often considered taking it over to the little Plymouth airport where I took
flying lessons and see if I could buy half a tank of 100 octane aviation
fuel to mix with the 93 octane. Problem is that I think aviation gas is
still leaded, and it would probably screw something up.

Mrs.E. had a good one the other day. Her Navigator calls for "high test"
(91 octane). She was giving me a ride back from the Cape after I brought
the boat down there and I noticed that her left directional was blinking
twice as fast as the right. I mentioned to her that one of the blinker
lights was probably out.

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price of
gas hit four dollars a gallon.

Some people should stick to horses.

Eisboch



Eisboch July 13th 08 07:42 AM

Porsche Gas Mileage
 

"Short Wave Sportfishing" wrote in message
...



My 'Vette is an entirely different story. When I took the blower off
and downsized from twin 950 Holleys to single, put the rear end back
to street legal and changed over from street drag slicks to street
legal tires, the mileage went up marginally - from about 6 mpg to
maybe 10. I went from 645 hp on a dyno to just south of 400 hp.

Think it might help if I took the 3/4 cam and NOX out of it? :)



The '67 GTO needs 91 octane or better and even then it will still "knock" a
bit if you get on it.
So, I don't. I thought about retarding the timing a little, but I drive the
car very infrequently and baby it when I do.
I'll just leave it alone.

The '63 Galaxie with a 390 seems very happy on 91 octane. Again, I only
drive it for a few hours per month, so it's 10 mpg isn't a big issue.

It just cracks me up that the Porsche and the Sprinter .... one a high
horsepower performance orientated vehicle, the other a diesel powered RV,
get the best fuel mileage of all our vehicles ..... except the motorcycles.

Eisboch



Eisboch July 13th 08 07:46 AM

Porsche Gas Mileage
 

Just to add some boating content to this thread:

http://gizmodo.com/gadgets/boats/fir...cht-238000.php

Eisboch



Short Wave Sportfishing[_2_] July 13th 08 11:38 AM

Porsche Gas Mileage
 
On Sat, 12 Jul 2008 18:52:23 -0700 (PDT), JimH
wrote:

On Jul 12, 9:10*pm, Short Wave Sportfishing
wrote:
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

In these days of high fuel prices and being "green", I love it when people
smugly comment about how my 911 TT *must be "terrible"
in terms of gas mileage.


Today, for kicks, I reset the car computer that calculates MPG as I entered
onto a limited access highway heading back from the Cape.
I drove for approximately 35 minutes, at speeds ranging from 60 -75 mph,
mostly 65-70 mph. *I didn't do anything special in terms of driving
techniques ... just drove normally.


At the end of the 35 minutes, the computer calculated mileage display read
"28.9 mpg".
My "normal" average of combined around town and highway driving is usually
about
20-21 mpg unless I have done some sustained "spirited" driving.


Not bad, all things considered, and the look on people's faces when I tell
them what it gets for mileage is usually one of disbelief.


It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


Doesn't surprise me in the least. *It' s a properly engineered car
with engineered gearing and weight to horsepower ratios. Add in the
aero packages, the fact that it's properly balanced and you've got
efficient power application up the hoo hoo.


As I already said.


Yes Jim - we all know you are a genius and a GOD....

Short Wave Sportfishing[_2_] July 13th 08 11:39 AM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 01:46:26 -0400, wrote:

On Sun, 13 Jul 2008 01:10:45 GMT, Short Wave Sportfishing
wrote:

My 'Vette is an entirely different story. When I took the blower off
and downsized from twin 950 Holleys to single ...


My 69 bone stock 350/350 would get about 24-25 if you could keep those
fat assed quadrajet secondaries closed.


~~ snerk ~~

Damn straight. :)

Short Wave Sportfishing[_2_] July 13th 08 11:41 AM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 02:46:10 -0400, "Eisboch" wrote:


Just to add some boating content to this thread:

http://gizmodo.com/gadgets/boats/fir...cht-238000.php


Slick llooking - I'll give it that.

Not a lot of fishing space though. :)

Short Wave Sportfishing[_2_] July 13th 08 11:43 AM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price of
gas hit four dollars a gallon.


Heh...

Some people should stick to horses


Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.

Short Wave Sportfishing[_2_] July 13th 08 11:46 AM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 02:42:52 -0400, "Eisboch" wrote:


"Short Wave Sportfishing" wrote in message
.. .



My 'Vette is an entirely different story. When I took the blower off
and downsized from twin 950 Holleys to single, put the rear end back
to street legal and changed over from street drag slicks to street
legal tires, the mileage went up marginally - from about 6 mpg to
maybe 10. I went from 645 hp on a dyno to just south of 400 hp.

Think it might help if I took the 3/4 cam and NOX out of it? :)



The '67 GTO needs 91 octane or better and even then it will still "knock" a
bit if you get on it.
So, I don't. I thought about retarding the timing a little, but I drive the
car very infrequently and baby it when I do.
I'll just leave it alone.

The '63 Galaxie with a 390 seems very happy on 91 octane. Again, I only
drive it for a few hours per month, so it's 10 mpg isn't a big issue.


Are the higher octanes 10% ethanol or is it just regular?

Eisboch July 13th 08 12:10 PM

Porsche Gas Mileage
 

"Short Wave Sportfishing" wrote in message
...
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price
of
gas hit four dollars a gallon.


Heh...

Some people should stick to horses


Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.



Really? If I remember correctly, around here 87 octane is "regular", 89
octane is "plus" or something,
91 octane is "high test" .... and then Sunoco sells 93 octane as "Ultra".

I seem to remember that many years ago Sunoco used to sell a very high
octane blend .... something like 97 ... for the muscle car crowd.

Eisboch



Eisboch July 13th 08 12:12 PM

Porsche Gas Mileage
 

"Short Wave Sportfishing" wrote in message
...
On Sun, 13 Jul 2008 02:42:52 -0400, "Eisboch" wrote:


"Short Wave Sportfishing" wrote in message
. ..



My 'Vette is an entirely different story. When I took the blower off
and downsized from twin 950 Holleys to single, put the rear end back
to street legal and changed over from street drag slicks to street
legal tires, the mileage went up marginally - from about 6 mpg to
maybe 10. I went from 645 hp on a dyno to just south of 400 hp.

Think it might help if I took the 3/4 cam and NOX out of it? :)



The '67 GTO needs 91 octane or better and even then it will still "knock"
a
bit if you get on it.
So, I don't. I thought about retarding the timing a little, but I drive
the
car very infrequently and baby it when I do.
I'll just leave it alone.

The '63 Galaxie with a 390 seems very happy on 91 octane. Again, I only
drive it for a few hours per month, so it's 10 mpg isn't a big issue.


Are the higher octanes 10% ethanol or is it just regular?




10% ethanol. Ethanol is supposed to have a higher octane rating than gas,
so the gas part of the mix has probably been lowered in terms of octane. I
don't know.

Eisboch



Eisboch July 13th 08 12:15 PM

Porsche Gas Mileage
 

"Short Wave Sportfishing" wrote in message
...
On Sun, 13 Jul 2008 02:46:10 -0400, "Eisboch" wrote:


Just to add some boating content to this thread:

http://gizmodo.com/gadgets/boats/fir...cht-238000.php


Slick llooking - I'll give it that.

Not a lot of fishing space though. :)



I read about these before. Porsche really has nothing to do with them other
than the fact that Fearless contracted the Porsche design group to come up
with the "look".

Eisboch



Jim July 13th 08 12:50 PM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

"DK" wrote in message
...
Eisboch wrote:



Frankly, I am not sure I believe the computer. I just filled it up and
will check it the old fashioned way ..... mileage driven, gallons used.


I think I'm getting a bit more in the X5, too. I'll have to try that.

Have you ever run mid-grade in your German cars? I know the computers
will adjust and the fuel economy can decrease.




I never tried anything but "high test". When we had the BMW's, the price
of gas wasn't an issue, so there was no reason.
One downside of the Porsche is that it calls for 93 octane (minimum). The
only place I can get it is at Sunoco, who still carries 93 "Ultra". I've
often considered taking it over to the little Plymouth airport where I
took flying lessons and see if I could buy half a tank of 100 octane
aviation fuel to mix with the 93 octane. Problem is that I think aviation
gas is still leaded, and it would probably screw something up.

Mrs.E. had a good one the other day. Her Navigator calls for "high test"
(91 octane). She was giving me a ride back from the Cape after I brought
the boat down there and I noticed that her left directional was blinking
twice as fast as the right. I mentioned to her that one of the blinker
lights was probably out.

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price
of gas hit four dollars a gallon.

Some people should stick to horses.

Eisboch

Keep it up and you will be mucking stalls forever.


BAR[_2_] July 13th 08 02:35 PM

Porsche Gas Mileage
 
Eisboch wrote:
"Short Wave Sportfishing" wrote in message
...
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price
of
gas hit four dollars a gallon.

Heh...

Some people should stick to horses

Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.



Really? If I remember correctly, around here 87 octane is "regular", 89
octane is "plus" or something,
91 octane is "high test" .... and then Sunoco sells 93 octane as "Ultra".

I seem to remember that many years ago Sunoco used to sell a very high
octane blend .... something like 97 ... for the muscle car crowd.


Doesn't Sunoco put 10% ethanol in their "fuel?" I see that sticker on
their pumps and pass by. My gas sucking pig, 2001 F-150 5.4L, gets 20%
less MPG when the fuel contains ethanol.

Short Wave Sportfishing[_2_] July 13th 08 03:48 PM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 07:10:10 -0400, "Eisboch" wrote:


"Short Wave Sportfishing" wrote in message
.. .
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price
of
gas hit four dollars a gallon.


Heh...

Some people should stick to horses


Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.



Really? If I remember correctly, around here 87 octane is "regular", 89
octane is "plus" or something,
91 octane is "high test" .... and then Sunoco sells 93 octane as "Ultra".

I seem to remember that many years ago Sunoco used to sell a very high
octane blend .... something like 97 ... for the muscle car crowd.


There's a Sunoco station in Ashford that still sells it I think.

Wayne.B July 13th 08 04:16 PM

Porsche Gas Mileage
 
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


A car like that should be in a better climate.

Let me store it for you here in Florida. :-)


Eisboch July 13th 08 09:37 PM

Porsche Gas Mileage
 

"BAR" wrote in message
. ..
Eisboch wrote:
"Short Wave Sportfishing" wrote in message
...
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was
because
I've been using "regular" gas instead of "high test" ever since the
price of
gas hit four dollars a gallon.
Heh...

Some people should stick to horses
Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.



Really? If I remember correctly, around here 87 octane is "regular", 89
octane is "plus" or something,
91 octane is "high test" .... and then Sunoco sells 93 octane as "Ultra".

I seem to remember that many years ago Sunoco used to sell a very high
octane blend .... something like 97 ... for the muscle car crowd.


Doesn't Sunoco put 10% ethanol in their "fuel?" I see that sticker on
their pumps and pass by. My gas sucking pig, 2001 F-150 5.4L, gets 20%
less MPG when the fuel contains ethanol.



I think *all* gas stations in the USA have 10% ethanol. A few have 85%
ethanol for those autos so designed.

Eisboch



Eisboch July 13th 08 09:38 PM

Porsche Gas Mileage
 

"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


A car like that should be in a better climate.

Let me store it for you here in Florida. :-)



You wish. It's one of my only joys in life.

Eisboch



JimH[_2_] July 13th 08 09:56 PM

Porsche Gas Mileage
 
On Jul 13, 4:37*pm, "Eisboch" wrote:
"BAR" wrote in message

. ..



Eisboch wrote:
"Short Wave Sportfishing" wrote in message
. ..
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:


Her response? * "Oh .... is *that* what it is? *I thought it was
because
I've been using "regular" gas instead of "high test" ever since the
price of
gas hit four dollars a gallon.
Heh...


Some people should stick to horses
Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.


Just regular.


Really? * If I remember correctly, around here 87 octane is "regular", 89
octane is "plus" or something,
91 octane is "high test" .... and then Sunoco sells 93 octane as "Ultra".


I seem to remember that many years ago Sunoco used to sell a very high
octane blend .... something like 97 ... for the muscle car crowd.


Doesn't Sunoco put 10% ethanol in their "fuel?" I see that sticker on
their pumps and pass by. My gas sucking pig, 2001 F-150 5.4L, gets 20%
less MPG when the fuel contains ethanol.


I think *all* gas stations in the USA have 10% ethanol. * *A few have 85%
ethanol for those autos so designed.

Eisboch


I believe you are correct.....that is, E10 blend being the standard
blend at most gas statoins. According to news reports refiners are
now considering an E20 blend.

It is my understanding that E85 reduces fuel economy for the cars
designed to use it, negating the price reduction at the pump at the
gas stations offering it.


Eisboch July 14th 08 12:05 AM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.


A car like that should be in a better climate.

Let me store it for you here in Florida. :-)



You wish. It's one of my only joys in life.

Eisboch


Took the Goat out for it's monthly turnaround today and stopped by my
younger (Eisboch Jr's) house. He's too young to remember or even know of
old school muscle cars. He thinks his high revving hemi in his Durango is
the balls.

So, when I left his house, I had to show him what old, low RPM, high torque,
American Muscle was all about......

http://www.eisboch.com/mymark2.jpg

and to think .... in a couple of years I'll be 60 years old.

Eisboch



Eisboch July 14th 08 12:07 AM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

"Eisboch" wrote in message
...

"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

A car like that should be in a better climate.

Let me store it for you here in Florida. :-)



You wish. It's one of my only joys in life.

Eisboch


Took the Goat out for it's monthly turnaround today and stopped by my
younger (Eisboch Jr's) house. He's too young to remember or even know of
old school muscle cars. He thinks his high revving hemi in his Durango is
the balls.

So, when I left his house, I had to show him what old, low RPM, high
torque, American Muscle was all about......

http://www.eisboch.com/mymark2.jpg

and to think .... in a couple of years I'll be 60 years old.

Eisboch


edit ..... meant to say ".... stopped by my younger son's ......"



HK July 14th 08 12:17 AM

Porsche Gas Mileage
 
Eisboch wrote:
"Eisboch" wrote in message
...
"Eisboch" wrote in message
...
"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.
A car like that should be in a better climate.

Let me store it for you here in Florida. :-)


You wish. It's one of my only joys in life.

Eisboch

Took the Goat out for it's monthly turnaround today and stopped by my
younger (Eisboch Jr's) house. He's too young to remember or even know of
old school muscle cars. He thinks his high revving hemi in his Durango is
the balls.

So, when I left his house, I had to show him what old, low RPM, high
torque, American Muscle was all about......

http://www.eisboch.com/mymark2.jpg

and to think .... in a couple of years I'll be 60 years old.

Eisboch


edit ..... meant to say ".... stopped by my younger son's ......"




I'm not sure I "get" the photo...are you referring to the tire marks?
I could do that with my 65 hp, 1953 Aero-Willys and, in fact, frequently
did, in first and second gear, but not third gear.




Don White July 14th 08 12:21 AM

Porsche Gas Mileage
 

"Eisboch" wrote in message
...

"Eisboch" wrote in message
...

"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

A car like that should be in a better climate.

Let me store it for you here in Florida. :-)



You wish. It's one of my only joys in life.

Eisboch


Took the Goat out for it's monthly turnaround today and stopped by my
younger (Eisboch Jr's) house. He's too young to remember or even know of
old school muscle cars. He thinks his high revving hemi in his Durango is
the balls.

So, when I left his house, I had to show him what old, low RPM, high
torque, American Muscle was all about......

http://www.eisboch.com/mymark2.jpg

and to think .... in a couple of years I'll be 60 years old.

Eisboch



Couple of years??? Weren't you born in 1949?
My calendar says you'll be 60 within the year...give or take a month or two.
For me it's one year, one month and a week & some change.



John H.[_4_] July 14th 08 12:31 AM

Porsche Gas Mileage
 
On Sun, 13 Jul 2008 19:05:31 -0400, "Eisboch" wrote:


"Eisboch" wrote in message
...

"Wayne.B" wrote in message
...
On Fri, 11 Jul 2008 19:44:38 -0400, "Eisboch" wrote:

It really is an amazing car, given 445hp, it's performance and it's fuel
economy.
I should drive it all the time.

A car like that should be in a better climate.

Let me store it for you here in Florida. :-)



You wish. It's one of my only joys in life.

Eisboch


Took the Goat out for it's monthly turnaround today and stopped by my
younger (Eisboch Jr's) house. He's too young to remember or even know of
old school muscle cars. He thinks his high revving hemi in his Durango is
the balls.

So, when I left his house, I had to show him what old, low RPM, high torque,
American Muscle was all about......

http://www.eisboch.com/mymark2.jpg

and to think .... in a couple of years I'll be 60 years old.

Eisboch


Probably added two degrees to the earth's temperature. Shame on you.

DK July 14th 08 01:17 AM

Porsche Gas Mileage
 
Eisboch wrote:
"DK" wrote in message
...
Eisboch wrote:


Frankly, I am not sure I believe the computer. I just filled it up and
will check it the old fashioned way ..... mileage driven, gallons used.

I think I'm getting a bit more in the X5, too. I'll have to try that.

Have you ever run mid-grade in your German cars? I know the computers
will adjust and the fuel economy can decrease.




I never tried anything but "high test". When we had the BMW's, the price
of gas wasn't an issue, so there was no reason.
One downside of the Porsche is that it calls for 93 octane (minimum). The
only place I can get it is at Sunoco, who still carries 93 "Ultra". I've
often considered taking it over to the little Plymouth airport where I took
flying lessons and see if I could buy half a tank of 100 octane aviation
fuel to mix with the 93 octane. Problem is that I think aviation gas is
still leaded, and it would probably screw something up.

Mrs.E. had a good one the other day. Her Navigator calls for "high test"
(91 octane). She was giving me a ride back from the Cape after I brought
the boat down there and I noticed that her left directional was blinking
twice as fast as the right. I mentioned to her that one of the blinker
lights was probably out.

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price of
gas hit four dollars a gallon.

Some people should stick to horses.

Eisboch



Women...!

DK July 14th 08 01:24 AM

Porsche Gas Mileage
 
Short Wave Sportfishing wrote:
On Sun, 13 Jul 2008 02:22:15 -0400, "Eisboch" wrote:

Her response? "Oh .... is *that* what it is? I thought it was because
I've been using "regular" gas instead of "high test" ever since the price of
gas hit four dollars a gallon.


Heh...

Some people should stick to horses


Speaking of 91 octane, the gas stations around here aren't sellin it
anymore - or the mid-grade 87 octane.

Just regular.


On the water or on land?


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