the thing i have always heard about racing oil in a street car is that it doesn't have the additives that typical street oils have ... including cleaning elements.
the thing i have always heard about racing oil in a street car is that it doesn't have the additives that typical street oils have ... including cleaning elements.
Correct....
The additive package for a racing oil is not geared at all towards 'regular' use - where moisture, time and the repeated heat cycling that street engines go through are not typically encountered in race cars.
I am intrigued by the Castrol GTX Classic and its SJ rating (the closest current API spec to our vintage of equipment). And it has 1310ppm of zinc, so it is right up there with some of the other high zinc content oils.
I am intrigued by the Castrol GTX Classic and its SJ rating (the closest current API spec to our vintage of equipment). And it has 1310ppm of zinc, so it is right up there with some of the other high zinc content oils.
*zinc - fixed it for yalead
Oh jeez. Fixed in context now. Thanks Steve!*zinc - fixed it for ya![]()