Excessive Engine Oil Consumption

Excessive engine oil consumption

Diagnostic Procedure:

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

2. Check for oil leaks.

3. Check for worn valve guide(s) Valve Stem-to-Guide Clearance Inspection or worn valve stem seal(s). Valve, Spring, and Valve Seal Removal

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

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