For 1990-2009 cars

Cause | Correction
--- | ---
Incorrect oil level An oil level that is overfull causes aeration within the oil. | Add or remove oil, as required, to achieve the proper level.
Incorrect oil filter without anti-drainback feature | Install the correct oil filter.
Incorrect oil viscosity |

1. Drain the oil.
2. Install the correct viscosity oil.

High valve lifter leak down rate | Replace the valve lifters, as required.
Worn crankshaft thrust bearing |

1. Inspect the crankshaft end play.
2. Inspect the thrust bearing and crankshaft.
3. Repair or replace, as required.

Damaged or faulty oil filter bypass valve |

1. Inspect the oil filter bypass valve for proper operation.
2. Repair or replace, as required.