Excessive Oil Loss

An engine that has excessive oil consumption uses 0.9 L (1 qt) of oil, or more, within 2,000 miles (3200 km). The following conditions are indications of excessive oil consumption:

^ Improperly read oil level indicator (dipstick).

- Check the oil while the car is standing on a level surface.

- Allow adequate drain-down time.

^ Improper oil viscosity.

- Use the recommended SAE viscosity for prevailing temperatures.

- Check for the proper oil viscosity specifications.

^ Continuous high-speed driving.

^ Severe hauling, such as a trailer, causing decreased oil mileage.

^ Malfunctioning crankcase ventilation system.

^ External oil leaks.

- Tighten the bolts, as necessary.

- Replace the gaskets and seals, as necessary.

^ Worn or omitted valve guides and/or valve stem seals.

1. Ream the guides.

2. Install oversized service valves and/or new valve stem seals.

^ Broken, improperly installed, worn or unseated piston seals.

^ Piston improperly installed or improperly fitted.

^ Plugged cylinder head gasket oil drain holes.