Thanks for your replies...Yes they do have dyno no.'s on their fluids..Royal Purple web site...engine , tranny and rearend..from 1% to 3% gains in hp depending on your set up. I am not necessarily looking fro 5 or 10 hp(do not think I would feel or see the differance) looking for quality anh my research has shown
Royal Purple to exceed the competition, njot just baased on info. provided by mfg. but oter sources have tested their product...Have already ordered a case.
