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 500 miles (800 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. Trailer tow is not recommended during break in period.
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”.
NON-DETERGENT OR STRAIGHT MINERAL OILS MUST NEVER BE USED.
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:
Manufacturing
The all-new 2011 Jeep Grand Cherokee will be built at the
2.7-million-square-foot Jefferson North Assembly Plant (JNAP) in Detroit, which
has been the site of Jeep Grand Cherokee production since ...
Automatic Door Locks — If Equipped
The auto door lock feature default condition is disabled.
When enabled, the door locks will lock automatically when the vehicle’s speed
exceeds 15 mph (24 km/h). The auto door lock feature can be ...
Starting Procedures
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
• When leaving the vehicle, always remove the key
fob from the ign ...


