Originally Posted by Rocky918
Hey guys, just wondering... do you think using royal purple oil is worth it?
on the bottle it states taht it increases horsepower and torque... how is this possible becuase engine oils dont usually do this?
plus the 5W-30 taht we would use in our camaros isnt GM4712 (or whatever) certified...
It increases horsepower because it decreases friction on your internal engine parts. I put it in my Camaro and I did have a horsepower increase.