This may sound rather odd but here goes: My daughters car, 92 Plymouth Acclaim w/ 3L v6 gas engine has 118,000 miles on it and is beginning to smoke. Due to ca$h flow problems I need to stretch the life of this car out a little longer for her. Rather than a valve/valve seal job (or maybe more serious problems) I believe I heard a while back that synthetic oil burns smokeless(???) Can anyone confirm or deny this? The car isn't really worth socking a lot of money into at this point, but if I did and oil change to synthetic, and added only synthetic, it might reduce the embarrassment factor a little for my daughter. Any thoughts? The car only smokes really bad when oil is full, if I keep about 3/4 quart low it isn't too bad. If I get no replys I will try it and let you know what happens. THANKS Matt C.