Jellybean Posted January 30, 2012 Share Posted January 30, 2012 The Pro R is slightly cheaper, much difference running 10W50 Versus a 15W50? Link to comment Share on other sites More sharing options...
oilman Posted January 31, 2012 Share Posted January 31, 2012 The Pro R is a little thicker when cold, so you lose some cold start protection, but it's a little more stable during hard use, so a slightly better choice for track use. Cheers Tim Link to comment Share on other sites More sharing options...
Jellybean Posted January 31, 2012 Author Share Posted January 31, 2012 The Pro R is a little thicker when cold, so you lose some cold start protection, but it's a little more stable during hard use, so a slightly better choice for track use. Cheers Tim Thanks Tim , just out of curiosity what is the difference between 15W50 Pro 4 R for Bike Engines and 15W50 Pro R for Car Engines What differentiates one from the other? Or do they just like to keep Bike and Car branding seperate Link to comment Share on other sites More sharing options...
oilman Posted January 31, 2012 Share Posted January 31, 2012 The difference is the bottle size and label on the outside, we've been told it's the same oil inside. Link to comment Share on other sites More sharing options...
Jellybean Posted January 31, 2012 Author Share Posted January 31, 2012 The difference is the bottle size and label on the outside, we've been told it's the same oil inside. Cool! thanks Link to comment Share on other sites More sharing options...
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