Engine Break-In Recommendations - Jeep CHEROKEE User Manual

during the pre-heat process, When the
engine "Wait To Start" telltale goes off the
engine will automatically crank.
CAUTION!
To prevent damage to the starter, do not
crank continuously for more than 10
seconds at a time. Wait 10 to 15 seconds
before trying again.
3. The system will automatically engage the
starter to crank the engine. If the vehicle
fails to start, the starter will disengage
automatically after 30 seconds.
4. If you wish to stop the cranking of the
engine prior to the engine starting, push
the ENGINE START/STOP button again.
5. Check that the oil pressure warning light
has turned off.
6. Release the parking brake.
140
Engine Warm Up
Avoid full throttle operation when the engine
is cold. When starting a cold engine, bring
the engine up to operating speed slowly to
allow the oil pressure to stabilize as the
engine warms up.
NOTE:
High-speed, no-load running of a cold engine
can result in excessive white smoke and poor
engine performance. No-load engine speeds
should be kept under 1,200 RPM during the
warm-up period, especially in cold ambient
temperature conditions.
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
(100 km), speeds up to 50 or 55 mph (80 or
90 km/h) are desirable.
While cruising, brief full-throttle accelera-
tion within the limits of local traffic laws
contributes to a good break-in. Wide-open
throttle acceleration in low gear can be detri-
mental 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 consis-
tent with anticipated climate conditions
under which vehicle operations will occur.
For the recommended viscosity and quality
grades, refer to "Fluids And Lubricants" in
"Technical Specifications".
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
60 miles
operation. This should be considered a
normal part of the break-in and not inter-
preted as a problem.
CAUTION!