2015 Jeep Grand Cherokee Owner Manual Supplement - Page 44

2015 Jeep Grand Cherokee Manual

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42 STARTING AND OPERATING NOTE: Engine Warm-Up • Use of Climatized Ultra Low Sulfur Diesel Fuel or Avoid full throttle operation when the engine is cold. Number 1 Ultra Low Sulfur Diesel Fuel results in a When starting a cold engine, bring the engine up to operating speed slowly to allow the oil pressure to noticeable decrease in fuel economy. stabilize as the engine warms up. • Climatized Ultra Low Sulfur Diesel Fuel is a blend of Number 2 Ultra Low Sulfur and Number 1 Ultra Low If temperatures are below 32°F (0°C), operate the engine Sulfur Diesel Fuels which reduces the temperature at at moderate speeds for five minutes before full loads are applied. which wax crystals form in fuel. • The fuel grade should be clearly marked on the pump Engine Idling at the fuel station. Avoid prolonged idling, long periods of idling may be • The engine requires the use of "Ultra Low Sulfur Diesel harmful to your engine because combustion chamber Fuel". Use of incorrect fuel could result in engine and temperatures can drop so low that the fuel may not burn exhaust system damage. Refer to "Fuel Requirements" completely. Incomplete combustion allows carbon and varnish to form on piston rings, cylinder head valves, in "Starting And Operating" for further information. and injector nozzles. Also, the unburned fuel can enter Engine Oil Usage the crankcase, diluting the oil and causing rapid wear to Refer to "Maintenance Procedures" in "Maintaining Your the engine. Vehicle" for the correct engine oil viscosity.

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NOTE:
•
Use of Climatized Ultra Low Sulfur Diesel Fuel or
Number 1 Ultra Low Sulfur Diesel Fuel results in a
noticeable decrease in fuel economy.
•
Climatized Ultra Low Sulfur Diesel Fuel is a blend of
Number 2 Ultra Low Sulfur and Number 1 Ultra Low
Sulfur Diesel Fuels which reduces the temperature at
which wax crystals form in fuel.
•
The fuel grade should be clearly marked on the pump
at the fuel station.
•
The engine requires the use of
“Ultra Low Sulfur Diesel
Fuel”
. Use of incorrect fuel could result in engine and
exhaust system damage. Refer to “Fuel Requirements”
in “Starting And Operating” for further information.
Engine Oil Usage
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for the correct engine oil viscosity.
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.
If temperatures are below 32°F (0°C), operate the engine
at moderate speeds for five minutes before full loads are
applied.
Engine Idling
Avoid prolonged idling, long periods of idling may be
harmful to your engine because combustion chamber
temperatures can drop so low that the fuel may not burn
completely. Incomplete combustion allows carbon and
varnish to form on piston rings, cylinder head valves,
and injector nozzles. Also, the unburned fuel can enter
the crankcase, diluting the oil and causing rapid wear to
the engine.
42
STARTING AND OPERATING