Members with the Cummins 6.7 ISB engine on Freightliner chassis report confusion over oil capacity, as the manual often lists 12 quarts, but the dipstick reads low even after filling to that spec. Several experienced RVers clarify that Fleetwood or Freightliner, not Cummins, typically install the dipstick and extension tube, which can affect readings. There are at least two different oil pan ...

Understanding the Context

There are several threads in the Cummins engines forums about obtaining engine info direct from Cummins linked to your engine serial number . Maybe even a pdf of the engine owners manual / JMHO ; The Cummins ECM is monitoring all the engine functions , should oil pressure fall into a critical area you'd very soon be seeing engine derate and shut down warnings. Have you info on the brand of oil ... Hello fellow RAM owners.

Key Insights

Steelbob611 / Texas here. I am new to this forum and a first time RAM truck owner after a lifetime of being a GM truck and SUV owner. Made the switch and purchased RAM 2500 Crew Cab 6.7 L Cummins Diesel. Delivered October 2024. I have put about 1600 miles of gentle break...

Final Thoughts

Transfer Case Seal Failure - 2024 RAM 2500 6.7 L Cummins Diesel Not to bring up an old problem with Cummins ISL 400 engines, but I didn't know it was an old problem until we recently (June 2017) experienced catastrophic engine failure and started searching the Internet for answers. I thought my experience might help someone else avoid trouble and "bank-... Members are troubleshooting a significant exhaust leak on a 2008 Holiday Rambler with a 5.9 Cummins engine, which is unusual for that model year. The original poster is seeking recommendations for a replacement exhaust manifold that accommodates the EGR valve, noting that OEM parts are expensive and hard to source, with aftermarket options scarce. Several members suggest first diagnosing ...