This is my 2nd UOA from this bike. First oil change shown is M1 V-TWIN MC oil (on right). This analysis was Valvoline VR1 conventional 20w-50 (left). I put in Amsoil V-TWIN 20w-50 this fall and will analyze that next year, then M1 15w-50 after that.
Not sure what's going on with the titanium. Also, all the virgin and used oil analyses I've seen on VR1 show little to no moly and boron, so not sure if I get some carry over from previous oil on those elements.
Looks like the oil did shear down a bit to the upper end of 40 weight, whereas the M1 V-TWIN didn't shear down at all. I didn't really notice any difference on top end noise, maybe a little less than M1 V-TWIN.
Not sure what's going on with the titanium. Also, all the virgin and used oil analyses I've seen on VR1 show little to no moly and boron, so not sure if I get some carry over from previous oil on those elements.
Looks like the oil did shear down a bit to the upper end of 40 weight, whereas the M1 V-TWIN didn't shear down at all. I didn't really notice any difference on top end noise, maybe a little less than M1 V-TWIN.