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After break-in a synthetic. I run 20w50 in the summer and 15w50 in the winter. Not gonna talk Brands and start that Ol' Time Religion thing here.
 

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You can run any weight synthetic, from 10W-40 on after break in..they all have basically the same pour rates, and boil rate from 5w-20-15W-50 if you research. They only put weights on so the public does not freak out that their weight is not listed. Per a friend that works for Mobil One. I prefer using a jamo grade, in an actual motorcycle brand...like Castrol Power RS R4 4T Engine Oil, or Motul...The best oil for motorcycle per a rep. from one of its competitors is- Repsol, do some research...I hear wonderful things coming from here. Good luck
 
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