Oil Consumption Diagnosis
Excessive oil consumption, not due to leaks, is the use of 0.6 L
(0.14 gallon) engine oil within 1000 kilometers (622 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 inspect 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. |
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