Engine Inspection and Oil Consumption Test

1. Inspect engine for external oil leaks and repair as necessary.





2. Verily that the correct crankcase ventilation (PCV) valve is installed. Some aftermarket PCV valves do not meet Saturn specification and can cause oil consumption. (Refer to the chart for correct application.)

3. Change engine oil and filter (3.8 liters [4 quarts] of oil are required to properly fill the crankcase).

4. Start engine and bring up to normal operating temperature of 197°-212°F (97°-100°C).

5. Park vehicle on level ground and wait a minimum of five minutes afier engine is shut off. Check engine oil level to make sure it's at the FULL mark on the dipstick.

6. Mark the oil level on the dipstick with a scribe, if it is not exactly at FULL mark.

7. Record the vehicle's mileage, date of oil change and exact location of oil level on the Customer Service Order.

8. Return vehicle to customer and have customer check the engine oil level at each fuel fill and return the vehicle if oil level is at the ADD mark. If the oil level remains in the "cross-hatch" area, have the customer continue operating the vehicle for a minimum of 2000 miles (3218 km) before returning the vehicle for final oil consumption verification.

If engine uses 1 quart (0.951 liter) of oil in:

^ 3000 mi. (4827 km) or more, return vehicle to customer - this is acceptable oil consumption.

^ 1500 mi. 3000 mi. (2414 km 4827 km) proceed to Procedure 1 in this bulletin.

^ 1499 mi. (2414 km) or less proceed to Procedure 2 in this bulletin.