royal purple oil?
hi all. i am thinking about change my motor oil,transmisson fuild and diff oil to royal purple on my next oil change..i went to there site and the have alot and i mean alot of differnt magazines and companys that have reviewed this stuff and the all seem to find a horsepower and mpg benifit by using it.. and dyno test also .what are ur guys thoughts on this stuff http://www.royalpurple.com/ check out there web site and tell me what u think 
... thanks all
... thanks all
