Excessive Engine Oil Consumption

Excessive engine oil consumption

Verify the engine oil filler cap, the oil drain bolt, and the oil filter are tight.

Check for oil leaks.

Check for worn valve guide(s):

All models except PZEV Valve Stem-To-Guide Clearance Inspection (Except PZEV Models)

PZEV model Valve Stem-To-Guide Clearance Inspection (PZEV Models)

or worn valve seal(s):

All models except PZEV Valve Guide Replacement (Except PZEV Models)

PZEV model Valve Guide Replacement (PZEV Models)

Check for damaged or worn piston ring(s) Service and Repair.

Check for damaged or worn engine internal parts (cylinder wall, pistons, etc.) Testing and Inspection.