Preliminary
| The causes of excessive oil consumption may include the following conditions:
• | Incorrect oil level or improper reading of the oil level indicator |
| With the vehicle on a level surface, run the engine for a few
minutes, allow adequate drain down time (2-3 minutes) and check
for the correct engine oil level. |
| Refer to the vehicle owners
manual and use the recommended SAE grade and viscosity for the prevailing
temperatures. |
• | Continuous high speed driving and/or severe usage |
• | Crankcase ventilation system restrictions or malfunctioning components |
• | Worn valve guides and/or valve stems |
• | Worn or improperly installed valve stem oil seals |
• | Piston rings broken, worn, not seated properly |
| Allow
adequate time for the rings to seat. |
| Replace worn piston rings
as necessary. |
• | Piston and rings improperly installed or miss-fitted to the cylinder
bore |
|