Excessive oil consumption, not due to leaks, is the use of 1.9L (2 qts) or more of engine oil within 3 200 kilometers (2,000 mi). The causes of excessive oil consumption include the following conditions:
| • | External oil leaks. Tighten bolts and/or replace gaskets and oil seals as necessary. |
| • | Incorrect oil level or improper reading of oil level indicator. With the vehicle on a level surface, allow adequate drain down time and check for the correct oil level. |
| • | Improper oil viscosity. Use recommended SAE viscosity for the prevailing temperatures. |
| • | Continuous high speed driving and/or severe usage. |
| • | Crankcase ventilation system restrictions or malfunctioning components. |
| • | Valve guides and/or valve stem oil seals worn, or the seal omitted. Ream guides and install oversize service valves and/or new valve stem oil seals. |
| • | Piston rings broken, improperly installed, worn, or not seated properly. Allow adequate time for rings to seat. Replace broken or worn rings as necessary. |
| • | Piston improperly installed or miss-fitted. |
