Mechanics

BURNING OIL

2005 Pontiac Bonneville

Engine Mechanical problem
2005 Pontiac Bonneville 6 cyl Two Wheel Drive Automatic 70000 miles

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
Avatar
Tpatterson
March 31, 2009.




How often do you change oil and filter?

Docfixit
Apr 1, 2009.
Every 3000 to 4000 miles.

Thx

Tiny
Tpatterson
Apr 1, 2009.
Might try replacing PCV valve if crankcase is not ventalated well oil can collect moisture and burn off.
AD

Docfixit
Apr 1, 2009.

AD