Question about 2003 Cadillac Deville
My 1997 cadillac deville, northstar w/85,xxx miles, regular oil changes, burns almost 2 quarts of oil every change. It is not leaking.
If your car is losing oil, and if there is no evidence of oil leaking, there is no question that it is either losing it through piston rings or through the head (head gasket or valve guides).
Best thing to do is use a HEAVIER WEIGHT oil than specified for the vehicle when new, regularly monitor your oil level and be sure it never falls below one quart low, and consider having the engine overhauled when you start noticing a performance deficit or hear mechanical noise (such as rod knock) from the engine.
Posted on Apr 18, 2014
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Posted on Jan 02, 2017
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