2007-11-11 23:58:32 · 4 answers · asked by Bobby C 1 in Cars & Transportation ➔ Maintenance & Repairs
Old, worn out piston rings will allow oil into the combustion chamber, where it burns away during combustion.
Oil and coolant can comingle with a bad head gasket, leaving the dipstick reading low since some of your crankcase oil is now in your radiator.
2007-11-12 00:06:10 · answer #1 · answered by omnisource 6 · 0⤊ 0⤋
There could be any number of causes. If you see an oil residue under the car where you park (you can check by placing a newspaper or cardboard box under the car to make sure the drip is new from your car), it's a cracked oil pan or leaking drain plug. If you are seeing a lot of oily residue under the hood, it could be a leaking head gasket. And in the worst case scenario, if you are seeing a lot of heavy bluish smoke in the exhaust (especially during acceleration) you have bad piston rings and the oil is getting into the cylinders and being burned. Those are the three scenarios I can think of, in order of severity.
2007-11-12 08:08:22 · answer #2 · answered by dansinger61 6 · 0⤊ 0⤋
High rev's GM motors don't seal as well as I think they should. MY 6.0 liter LS-2 uses oil GM sent me a letter to check my oil often and if the oil get's low GM warranty won't pay for a engine. The letter also stated if I rev the engine above 3,000 to expect oil usage. Now what's a GUY with 400 hp GTO going to do idle around to save oil HECK NOT! If I am really heavy foot it can use a qt in 700 miles also normal according to GM
2007-11-12 08:11:18 · answer #3 · answered by John Paul 7 · 0⤊ 0⤋
depends if it is not leaking I would suspect worn rings. this allows the oil to push up the cylinder walls and burn off in the combustion process in teh engine.
2007-11-12 08:06:50 · answer #4 · answered by Derrick Young 2 · 0⤊ 0⤋