Oil Consumption Guidelines

All engines require oil to lubricate and protect the load-bearing and internal moving parts from wear. Oil usage has a direct relationship with the amount of fuel used.

Acceptable Rate of Oil Consumption

The accepted rate of oil consumption for gasoline engines in vehicles at or above 8600 GVW is 0.946 liter (1 qt) within 379 liters (100 gallons) of fuel used.

Factors Affecting Oil Consumption

Factors that can affect an owner’s concern with oil consumption include driving habits, vehicle maintenance, and leakage from the oil pan, engine covers, and engine oil cooler.

Measurement of Oil Consumption

To ensure accurate results, the temperature of the oil should be close to the same temperature as the last time the oil level was checked, and the vehicle should be at normal operating temperature.

Tips for Minimizing Oil Consumption

To minimize oil consumption, it is recommended to change the oil regularly, check the oil level regularly, and ensure that the engine is well-maintained.

Manual:

Download: Bulletin No. 03-06-01-023G – Higher Than Expected Oil Consumption at 8600 GVW and Above: Chevrolet and GMC Models

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