GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Opel 🢒 2009 🢒 Insignia HB (Global Epsilon) 🢒 Engine 🢒 Engine Mechanical - 2.8L, 3.0L, 3.2L, or 3.6L 🢒 Oil Consumption Diagnosis

Checks

Causes

DEFINITION: Excessive oil consumption (not due to leaks) is the use of 0.946 L (1 qt) or more of engine oil within 3 200 km (2,000 mi).

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