I know a few guys over the years that say S.t.p. oil treatment is really good to slow wear...I always thought it was just an oil thickener. I was watching someone putting it into his crankcase of his 1970 chevrolet impala 350 which has the original engine but the camshaft and lifters and timing gear and chain were replaced by us due to wear in 2006
He claims he has used this all his life and loves it he is in his late 60's and he used to own a transmission shop.. He claimed it even cleaned..I dont like to add anything to oil but im curious how many of us on here use it
He claims he has used this all his life and loves it he is in his late 60's and he used to own a transmission shop.. He claimed it even cleaned..I dont like to add anything to oil but im curious how many of us on here use it