after sitting a while(overnight or couple days) car is a little hard to start runs rough and white smoke in exhaust then it smooths out fairly well however milage seems to be lower and a black residue is in tailpipe I put in a better than usual system cleaner after 2 short trips no big improve but says it could be 4-5 trips I thought it was oil getting thru seals but a guy said I was getting excessive gas in system
Aug 22, 2014 at 6:18 AM
