Re: 100:1 Mix
10k miles on a china would be impressive no matter what kind of oil was used.
the 24" Colson with the reversed motor has been my daily driver for a coupla years now, the motor was used in the death race and at willow springs, and i'd estimate it at 10k miles, since i don't have a car. can't be sure exactly, but it's been ridden almost everyday up until recently, because i took the wheels off for the Grange race.
as soon as i get another set of 24's, it'll be back on the road, non-smoking it's way all over town.