Quote:
Originally Posted by beanoil
Is there a reference list of the manufacturers that are recommending 10w30 in bikes? Aprilia says 5w40, as does Kawasaki, and Suzuki off road. Honda is still recommending 10w40. Seems like a really small market, and even if recommended, I bet most folks would opt for a 10w40 or 20w50 if an option is listed in the owners manual. Regardless, fresh oil, changed regularly is the key to long engine life, especially in engines that share the oil with the gearbox.
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The reality is that many OEM's are going with thinner oils due to fuel economy and EPA issues. 7 to 8 years ago Ford was the first to require a 20 weight oil in all their v-8 engines and now many OEM's have followed suit. Engines are not wearing prematurely so the fears of too thin of a viscosity has been unfounded. The same will happen in the motorcycle market. I don't have a list of who is requiring or who will in the future, but it is a trend and unless there is some sort of downside found down the road, most new water cooled bikes will be requiring it. I know new Goldwings are requiring it and on the 600rr.net site they have been discussing it for their new bikes.
george
ADG
