Ha. I gotta ask why you’re using a ZDDP additive? IMO, any high performance, non ILSAC GF-4 motor oil is going to have plenty (1300-1500ppm). Too much ZDDP is actually not a good thing.
Ha. I gotta ask why you’re using a ZDDP additive? IMO, any high performance, non ILSAC GF-4 motor oil is going to have plenty (1300-1500ppm). Too much ZDDP is actually not a good thing.