I get the JASO rating and "motorcycle" oil for powersports with wet clutch units. My question is this: What if you have a powersport (such as a polaris ATV/UTV) that doesn't have a wet clutch? Why would I use an oil that limits friction modifiers for a clutch my unit doesn't have? I'm an Amsoil fan and am using the signature series 5w50 right now but recently they added a JASO ATV/UTV 5w50 and it sounds like a lot of folks are switching to that from what they use now (understandably). To my understanding both have to meet the emission/catalytic requirements so that should be a net neutral. But my gut feeling is that the signature series may have a better anti friction package because it doesn't have to meet wet clutch requirements. I know just enough to be dangerous so sorry if this is a dumb question but I haven't seen much on this topic.