Just wondering what thoughts are on Breaking this motor in? Did you Pamper and Baby it? Ride it Hard and put it away wet? Somewhere in the middle?
My theory lands solidly in the Middle. Run her through the RPM range during the break in cycle....Rinse and repeat!

 

Official answer from jeep iPhone app:

A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle.

Drive moderately during the first 300 miles (500 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are desirable.

While cruising, brief full-throttle acceleration within the limits of local traffic laws contributes to a good break-in. Wide-open throttle acceleration in low gear can be detrimental and should be avoided.

The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For the recommended viscosity and quality grades, refer to “Maintaining Your Vehicle”.

NOTE: A new engine may consume some oil during its first few thousand miles (kilometers) of operation. This should be considered a normal part of the break-in and not interpreted as an indication of difficulty.

 

A modern automobile engine, from the factory shouldn't need a "breakin".

On my motorcycles, it's different. They still use dino, "breakin" oil, for the first 500 miles. from then on, it's nothing but good synthetics.

The Jeep, gets a good conventional oil.

 

*** i was told to use a 'breaking in' oil, i didnt drive it hard for months and warmed it up first as i get snow, the cold is very hard on an engine anyways let alone a new one. i get very frequent oil changes etc. i take good care of mine. -lindas jeep

 

Break in oil not used or needed. Frequent oil changes in a modern engine is not needed. I would say that the majority of responses to that issue of people on this forum is to change oil about every 5000 miles. That's what I do. I now have over 37,000 miles of flawless performance on my 2012.

 

What exact type of oil is "break in" oil?

 

Break in oil is not used in our jeeps. Oil of this type does exist for other things. The oil basically doesn't have anti friction additives which allows rings to seat properly. Again, not in our jeeps. Not needed in our jeeps.

 

Back in the day working on small aircraft I remember using mineral oil made by Aeroshell for breaking in engines. On cars I've never used the majestic break in oil people speak of on the JK forums.

 

I change the oil when the computer says as it keeps track of a bunch of metrics to determine when that is. Remember to R.T.F.M.

 

I agree with most everything about drive easy the first few hundred miles, and no need for special break-in oil. But I would like to add, make sure you thoroughly warm up your engine over longer drives vs just taking short hops around town.