Excessive oil consumption, not due to leaks, is the use of 0.9 L
(1 qt) or more of engine oil within 3 200 kilometers
(2,000 miles). The causes of excessive oil consumption include the
following conditions:
| | 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. |
| | 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 mis-fitted |
