Einar
.060 Over
- Joined
- Jan 14, 2024
- Messages
- 168
- Location
- Los Estados Unidos
- Ride
- '24 Rocket 3 GT & '23 Tiger 1200 GT Pro
JASO is just a standards organization that, among other things, conducts objective tests of the characteristics of oils submitted to them. Oils subjected for friction analysis are rated either MB, MA1, MA, or MA2, in ascending overall order of friction, based upon objective measures of their performance. Those yielding results that fall within the MB category are usually too "slippery" for use in a wet clutch, typically due to the use of friction modifiers, but would work well in other situations such as Harley-Davidon M8 engines and transmissions (which don't share oil with the clutch) and automobile engines. There's nothing "snake oil" about that--it's a simple reality that oils which are too slippery can cause clutches to slip and may not give the "grabbier" feel that some riders want in certain situations. If an oil hasn't been submitted to JASO or another organization for analysis of friction characteristics, then one is free to experiment with it and see if it's fit for purpose.not ture, there is actually very little if any difference as long as it meets spec. JASO is essentially a snake oil scam
If an oil causes your clutch to slip earlier in its lifecycle than it otherwise should have, then saving a few bucks to use that specific oil is probably a poor choice.