Engine Break-In Recommendations

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 “Maintenance Procedures” in “Maintaining Your Vehicle”.

CAUTION!
Never use Non-Detergent Oil or Straight Mineral Oil in the engine or damage may result.

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.

    See also:

    2011 Jeep Wrangler Unlimited review
    I've long thought that if a car enthusiast fell into a coma, say, 60 years ago and just awoke, he or she might recognize only two vehicles: The Porsche 911, and the Jeep Wrangler. Sure, both those ...

    Remote Start Abort Message On Electronic Vehicle Information Center (EVIC) — If Equipped
    The following messages will display in the EVIC if the vehicle fails to remote start or exits remote start prematurely: • Remote Start Aborted — Door Ajar • Remote Start Aborted — Hood A ...

    Replacing The Batteries
    Each set of headphones requires two AAA batteries for operation. To replace the batteries: • Locate the battery compartment on the left ear cup of the headphones, and then slide the battery cov ...