I don't want to get in the "less filling" "tastes great" battle about whether
multi grade oils thicken or stay the same over the 0 - 210f range but I do know
that 10-30 starts out holding about 40 PSI right after a change in my boat and
in about 15-20 hours it is more like 35. Something is going on.
That is using Merc oil or a good auto oil. If I bump it up to 25-40 it is
better. Straight 30 acts about the same as the 25-40.
Since I am never going to be in my boat if it is much below 70 degrees (air). I
am not sure why I am not just running 30HD. Cooling water will range from 67f
to 88f (5 year min/max) based on the water samples I do for the state.

okay, be a dumb **** then. no skin off my teeth.

(BenC)
Date: 9/21/2004 3:08 AM Eastern Daylight Time
Message-id:

(JAXAshby) wrote in message
...
How does all of this translate to outboards that run 120f thermostats?
If the oil is formulated for 210 degree operating temps (most cars) does
it
still work at 120-150?
I notice my merc 4 stroke has pretty low oil pressure 20-30 hours into an
oil
change when I run Merc 10-30. If I use an auto brand it acts the same way.
It
does better with merc 25-40

10w-30 at 150* will give less oil pressure than 30W at 150*

The advantage of multi oil is engine lube at ambient temp start up.









im fairly sure i can just ignore your childish posts jax as its fairly
obvious you have no clue what you are talking about.

http://www.autoeducation.com/autoshop101/oil-change.htm

read and learn. have a nice day.

Anybody using multi-weight oil *must* be very religious about changing it when
due.

That 5w-50 oil?

The basic oil in that jug is 5w. A group of "viscosity enhancers" allows the
oil to provide the same protection as 50w when the engine heats up.

Caution: The viscosity enhancers will break down after a while and the oil you
think is 5w-50 is then really only 5w.

I use Delo 400, 30 weight, in my engine.
Got about 4000 hours out of the first engine, and when it failed it wasn't due
to a lube or fuel problem.

( I have used Delo 100 for the first couple of oil changes on the new engine).

anybody who isn't religious about changing the oil -- no matter what oil --
ain't long on desire to keep his engine running.

Anybody using multi-weight oil *must* be very religious about changing it
when
due.

That 5w-50 oil?

The basic oil in that jug is 5w. A group of "viscosity enhancers" allows the
oil to provide the same protection as 50w when the engine heats up.

Caution: The viscosity enhancers will break down after a while and the oil
you
think is 5w-50 is then really only 5w.

I use Delo 400, 30 weight, in my engine.
Got about 4000 hours out of the first engine, and when it failed it wasn't
due
to a lube or fuel problem.

( I have used Delo 100 for the first couple of oil changes on the new
engine).

genei, you just laid waste to your claim of having an A & E, and using same to
make your living. even a hammer mechanic can hear the difference.

genie, knock it off. kriste on a crutch.

First of
all, 5 weight oil doesn't "lube better" than 40 weight oil.

it most certainly does, during the seconds it takes for pressure oil of a
just
started cold (meaning not at operating temp) engine to reach all the
bearings
needing pressure oil. 5w oil flows more easier at starting temp than does
40w
(ob vee us frickin' lee). that clatter you hear (well, a qualified mechanic
hears) on a just started engine is the bearings grinding and rubbing and
clashing with no pressue oil present.

If you hear "bearings grinding and rubbing and clashing" 5 weight, or
even 0 weight isn't going to help you. Besides, a real mechanic knows
that what you are probably hearing is valve lash, before the lifters
pump up.

Your scenario is only valid in an engine that uses very light oil and
is infrequently used. There should be enough oil remaining in the
clearances between bearings and journals to allow an engine to
re-start without damage.

Most people probably start their vehicle about 1250 times a year.....
if we heard "bearings grinding and rubbing and clashing" each time, I
don't think an automobile would last a month........

Mobil makes a 0W-40. Why don't you go out at fill that sunfish (or is
it Sunfish) (oh-ho-ho-ho-ho-ho..... Oh God, stop it Jax, you're
killing me with those capitals) up with some zero weight to help those
bearings out...... maybe if you wait long enough they'll come out
with a -30W-0 and that is sure to work even better..... have you
tried straight kerosene yet???

--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide

genei, knock it off. you long ago stopped trying to make a living even as a
tear down mechanic for 1940's aircraft engines.

Gene Kearns
Date: 9/21/2004 8:45 PM Eastern Daylight Time
Message-id:

On 21 Sep 2004 02:14:44 GMT, (JAXAshby) wrote:

How does all of this translate to outboards that run 120f thermostats?
If the oil is formulated for 210 degree operating temps (most cars) does it
still work at 120-150?
I notice my merc 4 stroke has pretty low oil pressure 20-30 hours into an
oil
change when I run Merc 10-30. If I use an auto brand it acts the same way.
It
does better with merc 25-40

10w-30 at 150* will give less oil pressure than 30W at 150*

The advantage of multi oil is engine lube at ambient temp start up.



Demonstrably, one of the most incredibly ignorant posts you have ever
made.....

http://www.fammllc.com/htmlpub/LUBE_bulletin_06.htm



--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide

I bow to your authority on *that* subject.....


genei, my authority, and the authority of millions of professional mechanics,
and even more amateurs.

genei, you just laid waste to your claim of having an A & E, and using same
to
make your living. even a hammer mechanic can hear the difference.


I bow to your authority on *that* subject.....


--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.southharbourvillageinn.linksysnet.com Real Time
Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide

genie, there is one hell of a difference. *if* you are able to make a living
using that A&E license you claim you have, you wold know the difference.

but neither is ever going to happen, is it gennei.

thank you hoary for confusing oil film with pressure oil. what a genius you
are. we are honored by your presence.


Even a fourteen year old hammer mechanic understands that the purpose
of pressure lubrication is to establish an oil film.......

Apparently you aren't competent enough mechanic to work on a
lawnmower.... now get out of those Speedos, put that hammer up, and
go back in the house....
--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.southharbourvillageinn.linksysnet.com Real Time
Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide

I don't know about ya'll, but at 5F, or below,

It 5f or below I realize I have made a terrible vacation choice and I get my
ass below the 27th parallel as fast as possible.

genei, you were told to knock it off and stay out of any discussions with
adults present.

"Gene Kearns"
Date: 9/23/2004 2:05 PM Eastern Daylight Time
Message-id:

On 23 Sep 2004 16:54:49 GMT, (Greg) wrote:

Merc doesn't make any oil, it merely repackages it (or more accurately, it
has
it repackaged for them).

Exactly why I wonder if all of the "automobile" advice applies to marine
outboards. This is oil made for the auto industry where the "starting" range
is
0f or below to a normal operating temp of over 210f (what most auto
thermostats
run).
That is an operational range of 200 degrees or so.
Outboards seldom start below 70f and it is closer to 80 most of the time
here.
The thermostat is 120f.

http://www.pennzoil.com/products/mar...ycleHDoil.html

30, 40,and 15W-40.... as you note... 30 will pump at -5F, 40 will pump
at 5F and if you boat at -25F, then 15W-40 is the oil for you.

See, in Jaxworld, water doesn't freeze until some temperature below
-25F and he is still boating. On a moments notice, he needs to start
the engine and pump that oil pressure up quickly so the bearings don't
grind and squeal... or whatever.

I don't know about ya'll, but at 5F, or below, I'm not boating. I'm
pulled up close to the fire, reading a good book, savoring a large
pot of fish stew, and a tall Guiness.....
--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.southharbourvillageinn.linksysnet.com Real Time
Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide