M11 Industrial Operation and Maintenance – Fuel in the Lubricating Oil

Symptom Tree  

Bulk oil supply is contaminated

Check the bulk oil supply. Drain the oil and replace with noncontaminated oil. Replace the oil filters.


Engine idle time is excessive

Low oil and coolant temperatures can be caused by long idle time (greater than 10 minutes). Shut off the engine rather than idle for long periods. If idle time is necessary, raise the idle speed.

Contact a Cummins Authorized Repair Facility

Last Modified:  19-Nov-2004