I searched and only found 2 threads on the subject with minimal information lol cmon guys you are slacking. I wanted to know more about this stuff before my next oil change. Im currently running rp 5w-40 in my supercharged acura, curious what the difference in the additive package is gona be between their API store lineup, HPS, and XPR, and which one i should settle on for the most protection for an engine that is gona be raced often.
I dont see anyone doing any tests on the stuff comparing the 3 lineups.
I dont see anyone doing any tests on the stuff comparing the 3 lineups.
