To the top of the document
Orlando
   
GMDE Start Page Load static TOC Load dynamic TOC Help?

Oil Consumption Diagnosis

Checks

Causes

The causes of excessive oil consumption may include the following conditions:

Preliminary

    • External oil leaks - refer to Oil Leak Diagnosis
    • Incorrect oil level or improper reading of the oil level indicator
        With the vehicle on a level surface, run the engine for a few minutes, allow adequate drain down time (2-3 minutes) and check for the correct engine oil level.
    • Improper oil viscosity
        Refer to the vehicle owners manual and use the recommended SAE grade and viscosity for the prevailing temperatures.
    • Continuous high speed driving and/or severe usage
    • Crankcase ventilation system restrictions or malfunctioning components
    • Worn valve guides and/or valve stems
    • Worn, missing or improperly installed valve stem oil seals
    • Piston rings broken, worn, not seated properly
        Allow adequate time for the rings to seat.
        Replace worn piston rings as necessary.
    • Piston and rings improperly installed or miss-fitted to the cylinder bore
   


© Copyright Chevrolet. All rights reserved