[TN_Max]

Same here, I run Rotella T6 in just about everything I have, always changed out to T6 at the first oil changes. Motorcycles, tractors, 4wheelers, SxS, etc...have had zero issues and will continue as usual.

I've run synthetic on 1st service on all my brand new SxS and I've put over 4K miles on a Viking and 11K miles on my famous X4 and trust me, they're broken in. Our SxS with only 2 cylinders have to work a lot harder going up and down per RPM than a 4, 6, or 8 cylinder engine going the same distance. Cars don't have engine braking like our Yamahas do either (driving an automatic). You're seating your rings every time you let off the gas because of Yamaha's engine braking.

We're not talking old school cast iron cylinder bores with chrome plated piston rings anymore either. Just my opinion.