Why does my Cadillac use oil so quickly?

Answer by  elden (116)

Engines that burn oil and aren't leaking usually have worn piston rings. Replacing rings is fairly expensive. Before you do that, check under the vehicle sometime when it has been parked for at least an hour. If there is no 'wet' spot under the engine then have a mechanic look at it.

Answer by  Kiddcarson (39)

You valve stem seals could be leaking allowing oil into the cylinder where it is being burnt off by the engine itself while running. Another thing that could be happening is that you may have a blown head gasket which is leaking oil into coolant. Check coolant for milky substance.

Answer by  Anonymous

My Cady also burns oil and I take it to the dealer on a regular basis but they can never find a leak. Is your Cady a Seville STS? Fortunately, there is a reading on my car that indicates the oil is low

Answer by  TwoToneDodge (2204)

Fine car that a Cadillac is it has a big engine. Most of the time a car will burn oil quickly if its older. To slow down the excess burning of oil try some gas and engine oil additives. As an engine ages it can start to use too much oil. Maintain your engine and the life of your car.

Answer by  Amber40 (24961)

It may have worn valve seal and could be leaking into the cylinder and burning off. If you see smoke when your driving or a big cloud when you start up that is a good sign of leaking seals. Take it to a mechanic so the can press out the old seals and press in some new ones.