2005 Pontiac Bonneville Burning Oil

2005 PONTIAC BONNEVILLE
70,000 MILES • 6 CYL • 2WD • AUTOMATIC
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TPATTERSON
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Every 3000 miles the engine warning light comes on showing check oil level. It seems the car burns a quart every 3,000 miles. I do not see any leaks, drips on the ground and it does not smoke.

What can cause the car to burn a quart of oil every 3K miles?

Thx.

Tom
Mar 31, 2009 at 4:06 PM
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DOCFIXIT
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How often do you change oil and filter?
Apr 1, 2009 at 3:34 PM
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TPATTERSON
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Every 3000 to 4000 miles.

Thx
Apr 1, 2009 at 3:40 PM
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DOCFIXIT
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Might try replacing PCV valve if crankcase is not ventalated well oil can collect moisture and burn off.
Apr 1, 2009 at 4:30 PM