Excessive Oil Loss or Consumption

- External oil leaks. Tighten bolts and/or replace gaskets and seals as necessary.

- Improper reading of dipstick. Check oil with vehicle on a level surface and allow adequate drain-down time.

- Continuous high speed driving and/or severe usage such as trailer hauling, will decrease oil mileage.

- PCV valve malfunctioning.

- Valve guides and/or valve stem seals worn or omitted. Ream guides and install oversize service valves and/or new valve stem seals.

- Improper oil viscosity. Use recommended S.A.E. viscosity for prevailing temperatures.

- Piston rings broken, worn, or not seated. Allow adequate time for rings to seat. Replace broken or worn rings as necessary.

- Piston improperly installed or misfitted.