One racer (circle track) that I talked to also swore by STP
but he seemed to think it was short lived. He didn't think it
would last between oil changes in a street car but worked great
in his race car when oil pressure was dropping near the end of
a race.
Dan Jones
> As for running Oils, I still use the same components, just in a
> different ratio. However, because STP is so slippery, I don't use it for
> the first 3,000 miles or so in a street car, or for the break in runs on a
> race engine, they don't break in soon enough with STP in there in the main
> oil. Once ready, it's GTX 20/50 & STP in the standard ratio of ~ 10-12:1
> That's 5 or 6 quarts of oil to one pint of STP. I like Castrol, but other
> Paraffin based oils as they used to be called are probably just as good.
> They are Quaker Sate, Pennzoil, and one other one I can't remember at the
> moment. They are stickier than California/Texas, or mid east based oils.
>
>
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