Quote:
Originally Posted by Brad T
I agree with the use of motorcycle oil in bikes or whatever that have a common transmission and engine lubrication, but with a “CVT “ constant velocity transmission, it is a dry clutch system and only grease on the bearing areas is generally required. Motorcycle oil is much like non-detergent oil that we used to use to break in new engines. The advantage of using automotive oil if possible would be the greater detergents in it to help clean the engine and keep contaminants in suspension. A Teryx does not spin at high RPM, but is more of a low RPM torque engine.
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I also agree
! The differece in TBN is slightly higher for auto oils (typically 12-13ish), most motorcycle/powersports is 10-11ish. As a factor of TBN, the rate of oil changes in a small motor is pushing 10X of your car, so the TBN becomes relatively insignificant (unless your engine dumping shi!t into the oil!). The biggest factors, I think, in the powersports oil is the anti-foam additive and detergents to reduce high acid levels that small engines can produce.
As for the CVT this is the output drive (converter) of the motor, the motor still has a geared crankcase transmission that requires lubrication.
I guess my point is auto oil is meant for less gearing applications and powersports is engineered to be able to be dual purpose.