does royal purple free up horse power? i have heard it does and does not and am not knowing now, clear up please?!

 

Thats what they say on there site and about there oil. but also have heard from others that it isnt very good. Personalu I think it is to expensive and for that reason it is not worth it.

5 quarts of oil for $100 for RP vs
5 quarts of oil for around $25 for most of the others that have been out there.
I'm probably off a few bucks but you can get the idea.