"Eisboch" wrote in message
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wrote in message
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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.