For 1990-2009 cars

### Excessive Oil Loss

An engine that has excessive oil consumption uses 0.9L (1qts) of oil, or more, within 2,000 miles (3,200 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.

- | Refer to SECTION 0B 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.