burning oil after sitting
 

ok, i just bought a 88 mustang gt, the guy who i bought it from told me that it has been sitting for 7 years and i got it running and it seems to be burning oil really bad. one of my buddy's told me that once i let all the old gas and everything burn out it will go away.. is that true?

RE: burning oil after sitting
 

waht color is the smoke and how long ha sit been sitting .If it fule injected the gas is probaly bas so I would drain it or suck it out with a siphion hose change fuel filter and fill it up with new gas and dump a bottle of lucas injector cleaner in it with a bottle of fuel drier and drive it around town til the tank empties then changer your filter agian . If you run the old fuel in ther you might damage the the fuel system

RE: burning oil after sitting
 

valve stem seals are probably dry-rotted so that smoke may never go away (if it's bluish/black)

RE: burning oil after sitting
 

its been sitting for 7 years. i already put new gas in it with some injector cleaner and new plugs.

RE: burning oil after sitting
 

yeah thats a good start

RE: burning oil after sitting
 

If you see blue/purple smoke thats not good. It will only get worse. tear it down and rebuild.

RE: burning oil after sitting
 

If it's blue smoke, theoretically, you may have one or more sticking piston rings--particularly if the car has been sitting a while. If this is the case (which in my experience, it never is), a few hard romps on the throttle may clear it up. Otherwise, either the piston rings are worn, or the valve seals are bad.

RE: burning oil after sitting
 

^^^ This is the most likely thing thats happened. Its leaking down when its sitting there not running and when you crank it, it burns the oil

RE: burning oil after sitting
 

valve stem seals are also simple as hell to replace

RE: burning oil after sitting
 

The cylinder walls could be pitted too so its letting a lot of oil slip by the rings and burning oil.