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Oil Consumption Diagnosis

Excessive oil consumption, not due to leaks, is the use of 0.6 L (0.14 gallon) engine oil within 1000 kilometers (622 miles). The causes of excessive oil consumption include the following conditions:

    • External oil leaks
        Tighten bolts and/or replace gaskets and oil seals as necessary.
    • Incorrect oil level or improper reading of oil level indicator
        With the vehicle on a level surface, allow adequate drain down time and inspect for the correct oil level.
    • Improper oil viscosity
        Use recommended SAE viscosity for the prevailing temperatures.
    • Continuous high speed driving and/or severe usage
    • Crankcase ventilation system restrictions or malfunctioning components
    • Valve guides and/or valve stem oil seals worn, or the seal omitted
        Ream guides and install oversize service valves and/or new valve stem oil seals.
    • Piston rings broken, improperly installed, worn, or not seated properly
        Allow adequate time for rings to seat. Replace broken or worn rings, as necessary.
    • Piston improperly installed or mis-fitted.
   


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