BLOWN Posted March 4, 2008 Report Share Posted March 4, 2008 What are you guys useing for your engine and trans and rearend oil? I have never used Syn oil before and was just wondering what you all are useing. Do you have any like or dislikes of the Syn oil? What brand are you useing. I have read on other threads that Mobile1 is good and so is Castrol oil I am talking FULL synthetic oil not blended. I have found a video about how Royal Purple makes 10 extra hp just by changeing the motor&trans&rear end oil with the Royal Purple Syn oil. Thanks for you comments http://www.royalpurple.com/rp-video/hrtv1.html Link to comment Share on other sites More sharing options...
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