Thread: Best r1 motor oil
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11/24/13, 9:31 PM   #9
Re: Best r1 motor oil
buckshot3448
buckshot3448 is offline
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Join Date: Mar 2010
Posts: 172
 

I use royal purple 20/50 with no problems. Ive got 10 race nights and never notice and changes due to alcohol like ive seen with other oils of course idk chemically if its done anything