Excessive oil consumption, not due to leaks, is the use of
1 liter (1 quart) of engine oil within 3 200 kilometers
(2,000 miles). However, during initial engine break-in periods 4 828-6 437 kilometers
(3,000-4,000 miles), oil consumption may exceed 1 liter
(1 quart) or more. The causes of excessive oil consumption include
the following conditions:
| | Tighten the 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, damaged, or the
seal omitted |
| | Ream the valve 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 the piston rings to seat. Replace broken
or worn piston rings as necessary. |
| • | Piston improperly installed or miss-fitted |
