2004 GMC Envoy Q&A
2004 GMC Envoy Question: ENVOY OIL BURNING
WHY IS MY CAR BURNING SO MUCH OIL. RAN THE CAR 1000 MILES AND NEEDED 2 QUARTS OF OIL. - Visitor
What kind of oil and what weight oil are you running - GetrDone
It is normal for an engine to require a little engine oil between services. For an engine to require excessive amounts of engine oil between services means the engine is either burning oil or leaking oil. Leaking oil should be pretty obvious, look for leaks underneath the engine at the oil filter, oil drain plug, and oil filter. Look for oil leaking from the timing belt cover area/timing chain cover and valve cover gasket. If an engine is "burning oil" look at the tail pipe and rear bumper for signs off discoloration or black oily deposits oil. Oil may leak down the valve guides particularly after the engine has been shut off and started from cold,if so blue oil smoke may be emitted from the tail pipe on start up, (this may also be noticeable if the car is left idle for a few minutes and then accelerated away for example after sitting at a traffic light). If the piston oil control rings are worn the engine normally smokes on acceleration. Oil control rings may fail due to an engine that has badly overheated or has had infrequent engine oil changes. Frequent oil changes with good quality oil is critical to long engine life. Perhaps changing oil viscocity to the next "thicker" grade would help. - patrick mannion
Seems like I go through several quarts of oil between oil changes. Had the car checked for leaks with the ultra violets and no leaks. No oil signs on tail pipe or in radiator fluid. Where is my oil...
Needs one to two quarts every 1500-2000 miles. No leak on ground. Why am I burning so much oil?
have 86k on my SUV. have 2500miles between last oil change and its consumed 3 quarts already.Not leaking,not smoking.Any thoughts on its eating so much oil?