gruntguru said:
Was the car running synthetic oil before you had it serviced?
Changing to synthetic oil will often result in increased oil consumption. This is usually temporary, but a worn engine will often have carbon deposits assisting the ring seal. Changing to synthetic will remove these deposits and expose . . . . a worn engine which will then proceed to do what worn engines do.
my experience with my old mercedes turbodiesel was a little different. Changed to synthetic and oil consumption was halved. The explaination offered by some not so technically inclined peoples was that it must've cleaned the piston ringlands and inproved ring seal. Seems far fetched to me.
All I know is synthetic can sometimes only reduce oil consumption, even from a high quality dino oil. And even in an aging 1980's era turbo Mercedes at that.
I'm under the impression that OP should have noticed oil consumption if it was going into the combustion chamber, it should have smoked. Going from full to empty on a tow should produce visible smoke. It could have been oil dilution, or poor quality oil, an oil leak, or, perhaps an oil leak into the exhaust somehow.
it is 100% possible there was a defect when OP bought the truck. However, if it only happened while towing, how was the dealer supposed to know? if OP could prove it, that the dealer knew and concealed it, he'd have a case which would be much more likely to result in a favorable outcome for him. In this case, however, I'm not so sure it's worth the effort. The dealer may have had the wool pulled over their eyes as much as OP. Then what are they going to do? go after the person who traded in the truck?
Engineering student. Electrical or mechanical, I can't decide!
Minoring in psychology