I've used it in just about everything cars included. 20w50 provides better high temperature protection but nit as much as a lower weight in cold weather. If you frequent 15 to below F temps then go 10-40 or 30 or 5-#This is the first time I've ever used 20W-50 weight M/C oil in any of my bikes. I only have about 100 miles with this oil so far. But I think the bike runs great and the transmission seems more positive going up or down.
Anybody else using a 20W-50 weight oil in there bike?