RAM/Cummins test drive observations

cummins2014 wrote:

IdaD wrote:

CampingN.C. wrote:
Per the owners manual on my 15, there is no break in period at all. It can be used to tow day one.
We just went to Tennessee this past weekend and it was the first time I've locked out 6th with the cruise on, it does make it better in the hills. Every other trip it'll cruise at 65-68mph in 6th. I'm still amazed at the power every time we go out.

Copy/Paste from your manual:

CAUTION!:
Do not tow a trailer at all during the first 500 miles (805 km) the new vehicle is driven. The engine, axle or other parts could be damaged.

Then, during the first 500 miles (805 km) that a trailer is towed, do not drive over 50 mph (80 km/h) and do not make starts at full throttle. This helps the engine and other parts of the vehicle wear in at the heavier loads.

Probably not a big deal but there is a break in period.

There is nothing in my manual on a 2014 Ram Cummins ABOUT the first 500 miles as you stated. Not sure what manual you have been reading .

Quote per my manual page 153 : " The Cummins turbocharged Diesel engine does not require a break-in period due to its construction. Normal operation is allowed, providing the following recommendations are followed :

* Warm up the engine before placing it under load
* Do not operate the engine at idle for prolonged periods
* Use the appropriate transmission gear to prevent engine lugging
* Observe vehicle oil pressure and temperature indicators
* Check the coolant and oil levels frequently
* Vary throttle position at highway speeds when carrying or towing significant weight.

NOTE :

Light duty operation such as light trailer towing or no load operation will extend the time before the engine is at full efficiency . Reduced fuel economy and power may be seen at this time.

* Because of the construction of the Cummins turbocharged diesel engine, engine run-in is enhanced by loaded operating conditions which allow the engine parts to achieve final finish and fit during the first 6,000 miles ( 10,000 km )


No caution whatsoever in my manual about any 500 mile break-in. Must have been in a Ford manual :B