oh hey sqwert we used the same oil in our bikes from 10 w 40 motorcycle oil ,mine was valvoline ,with a picture of motorcycle on it so whats all the fuss about ,the hawk engine design from the 1970s
it only make sence alot of guys will want to use the 15w40 that some has more zinc then others for the old shcool design,an from what i have seen more then half use it thats all i was saying did not meen to offend you
