Ken and Wygate,
Here is a copy of the Dodge Tech Net Bulletin that was in another post sometime back on fuel in oil. In there they state about fuel level in oil over 5% will trigger the change oil now message in the EVIC.
Jim
Dodge Tech Net Bulletin
Case Number K44264524
Vehicle Issue Engine oil level is high or may show overfull.
Year 2007,2008
Model DH -Ram Pickup HD, D1 -Ram Pickup 3500, DC -Ram 3500 Cab Chassis, DM -RAM 4500 / 5500 CAB CHASSIS
Engine 6. 7L CUMMINS TURBO DIESEL
Catagory Customer Concern (No DTCs)
System or Component : Engine Oil
Symptom : Oil Level Too High
Case Verification : Engine oil may have been recently changed. The customer may state the "Oil Change Required" message comes on too soon I at too short of an interval. Engine oil analysis may show above 5% fuel in oil dilution.
Recommendation
* Be Aware *
The closed-crankcase ventilation system on the 6. 7l Cummins Turbo Diesel engine retains oil much longer than on previous 5. 9L engines. Remove the engine oil fill cap while draining the engine oil to allow the CCV filter to drain. If the engine is only allowed to drain for a short time, then refilled with engine oil, the crankcase may actually be overfilled. The "Oil Change Required" message displayed on the EVIC is sent over the vehicle BUS system from the ECM. The message is requested when the ECM calculates there is excessive (above 5%) fuel in the engine oil dilution. This calculation is derived from engine idle time and the amount of time the engine is performing an 'active' exhaust regeneration. During these operating conditions, a small amount of fuel will get into the engine oil. This is normal operation of the engine.
Comments:
Reducing excessive engine idle time (above 20% engine idle time is generally considered excessive). Idle time is counted when there is zero vehicle speed and the throttle position is at rest (zero to 5 percent).
Engine idle time is determined by dividing the total engine idle time (displayed in hours) into the total time (displayed in hours). This information can be found in trip information.
Also note the total desired I completed I incomplete exhaust regenerations.
If possible, also note the ignition key cycles or engine warm-up cycles. Active exhaust regenerations must complete. If a regeneration (or 'De-Soot') process does not complete during an operation cycle, during the next operating cycle the entire regeneration process will start from the beginning.
Frequent short-trip operation of the engine will result in many incomplete regeneration processes (and relatively high fuel dilution in the engine oil).
Modification Date 01/15/08 8:28 AM
Review
Case Created Bv: Approved T1118KR
What is the current "Letter Designation" ECM Flash applicable for the 6. 7 ?