rod, are you saying that racers deliberately use poorer quality oil than the
englightened owner of a mercruiser powered bayliner?

Gene Kearns
Date: 10/12/2004 7:30 AM Eastern Daylight Time
Message-id:

On Mon, 11 Oct 2004 22:20:45 -0700, "rmcinnis"
wrote:


"Gene Kearns" wrote in message
news
On 09 Oct 2004 23:34:23 GMT, (JAXAshby) wrote:


btw, race engine builders still use high price oil and still feel the
money is
well-spent even if you still don't understand why.


Why don't you address the issue. Why do they chose a single weight oil
over multi-viscosity oil?


My experience with race car crews (including the guys that build the
engines) is that they do a LOT of things based on folk lore and "that's just

the way it's done". Don't try looking for a lot of logic from racers, they
are more into superstition than science.

That said, racing presents an entirely different environment for the oil
than recreational or regular automotive. They aren't likely to get 3000
miles on an engine, so they aren't likely to care what the long term
durability of the oil is. What they do care about is how the oil reacts in
high RPM situations. A "racing" oil is formulated to reduce foaming, which
can be a critical issue on a high performance engine. You don't want to run

that in your car or boat, however, unless you intend to change your oil on a

weekly basis.

Rod


If you are going off on that tangent that there are differences in
oils formulated for different purposes, you are going to horribly
upset Jax.... he'll be calling you stupid in no time...


--



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