A friend burned up his Massimo 700 wet clutch, got a clutch kit from Motorcycle Dr. he was tol, instead of two quarts of oil, put in almost 4. It’s back together and runs quieter he said with over 3 1/2 quarts. I think Craig (motorcycle DR) knows these machines really well, but I’m not hearing the extra oil from anyone else. Seems like there should be some confirmation about it. I’d like to know more, as I have the 550. Owners manual calls for a little less than 2 quarts. . The manual also says 10-40 SL. Nothing about wet clutch safe oil. I hope someone has more information about this,