occur. For recommended viscosity and quality grades,
refer to “Engine Oil” under “Maintenance Procedures” in
Section 7.
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 is a nor-
mal part of the break-in and is not an indication of
difficulty.
CAUTION!
•During the first 500 mi (805 km) your new vehicle
is driven, do not tow a trailer. Doing so may
damage your axles, driveline and vehicle.
•Limit your speed to 50 or 55 mph (80 or 90 km/h)
during the first 500 mi (805 km) of towing.
SAFETY TIPS
Exhaust System
WARNING!
Exhaust gases contain carbon monoxide, an ex-
tremely toxic gas that by itself is colorless and
odorless. To avoid inhaling these gases, the following
precautions should be observed:
•Do not run the engine in a closed garage or in confined
areas any longer than needed to move your vehicle in
or out of the area.
•It may be necessary to sit in a parked vehicle with the
engine running for more than a short period. If so,
adjust your climate control system to force outside air
into the vehicle. Set the blower at high speed and the
controls in any position except Off or Recirculation.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 73
2
Change Engine Oil
Refer to the “Maintenance Schedule” in Section 8 for the
proper maintenance intervals.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends engine oils that are API certified and meet
the requirements of Chrysler Material Standard MS-6395.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
Engine Oil Viscosity (SAE Grade)
For trucks with a 5.7L engine operating under a gross
combined weight rating of 14,000 lbs (6,350 kg) or greater,
SAE 5W-30 engine oil is recommended for all operating
temperatures.
For all other trucks with a 5.7L engine operating under a
gross weight rating less than 14,000 lbs (6,350 kg) SAE
5W-20 engine oil is recommended for all operating tem-
peratures. These engine oils improve low temperature
starting and vehicle fuel economy. Your engine oil filler
cap also shows the recommended engine oil viscosity for
your vehicle.
For information on engine oil filler cap location, refer to
“Engine Compartment” in this section.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
MAINTAINING YOUR VEHICLE 339
7
