Zinc
As long as your lifter bores are the correct size and alignment... All good until the needle rollers fail from poor alignment etc.. Somehow , up to a certain application, I think it's cheaper to purchase good oil, than it is to buy expensive roller lifters.
Ironically, the best solution to the zddp problem isn't more zinc, it's more steel:
As long as your lifter bores are the correct size and alignment... All good until the needle rollers fail from poor alignment etc.. Somehow , up to a certain application, I think it's cheaper to purchase good oil, than it is to buy expensive roller lifters.
