I have a 2011 Honda Rubicon ATV which requires wet clutch oil. I read on another forum that Shell Rotella T6 Diesel Engine oil is JASO-MA approved and that it runs great in wet clutch atv's and motorcycles. The best part is that 5L jugs can be purchased cheaply at Wally World. So, off to Wally I go and get a jug of Rotella T6 5W-40. I put it in my quad and it runs great!