Ardunbill,
Gee, what about the air cooled motorcycle folks at Bonneville? You reckon
just any old dino oil will do?
I wish I knew, we will be running Mobile 1 in a 6 cylinder air cooled
turbocharged motor. If I don't buy the wife a new dress this year, we might
be able to get some of the Redline "magical oil" or maybe talk Skip out of
some Pro-Blend.
Regards, Tom
----- Original Message -----
From: <ardunbill@webtv.net>
To: <land-speed@autox.team.net>
Sent: Monday, May 01, 2000 4:29 PM
Subject: Oily Tidbit
> Hi Folks, little item from yesterday's NASCAR race at Fontana, CA in
> the paper, J. Mayfield won, I don't follow this much as a rule, but it
> was reported that he had an overheating oil problem. Something wrong
> with his oil cooler and "the oil ran over 330 degrees for much of the
> race."
>
> The interesting point is, if this temperature is factual, that he could
> win a 500 mile endurance race, without engine failure, with such a temp.
> I understand that NASCAR teams use 20w-50 racing oil, pretty much the
> same thing we can buy at Wal-Mart for a buck a quart, if not identical.
>
> Unlike the old days, where people ran 50 wt oil in all race engines
> including Bonneville, apparently today a lot of Bonneville people use
> plain old 10w-30, and maybe 5W-30, which has the same hot viscosity as
> 10W-30 if the numbers mean what they should.
>
> I imagine maximum oil temperature is rarely or never an issue at
> Bonneville, since the runs are not over a few miles even on the long
> course, not enough time to put a lot of heat into the oil, right?
>
> The point is, should everybody be using 5W-30 or 10W-30 oil for speed
> trials? Gas motors I mean, I realize fuel motors are another matter
> entirely, where the fuel contaminates the oil so much. Regards from
> ArdunBill in the Great Dismal Swamp, Chesapeake, VA
>
>
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