so i changed my oil today from M1 to the t6 and OMG!!!!! this stuff is great my tranny shifts so crisp motor is quieter and over all im very happy! only thing is i came back and checked the oil level and u can see its already brown!. mybe thats because i didnt change the filter this time. i do a filter every other change. i do 3-4k oil changes. this is my 4th oil change since ive owned the bike.btw wix oil filter!!!