MINI Cooper Forum banner
mellow yellow
1-1 of 1 Results
  1. Second Generation MINI Cooper S
    I have a Mini cooper R56. That I have painstakingly rebuilt. Now it is a year later. And was wondering, as I know everything on it is correct and done correct I.E. timing marks lining up and the car idling fine and such. That if bad gasoline could cause horrendous backfiring? Or if it is...
1-1 of 1 Results