These effects can be reduced by timely rota-
tion of tires. The benefits of rotation are
especially worthwhile with aggressive tread
designs such as those on On/Off-Road type
tires. Rotation will increase tread life, help to
maintain mud, snow, and wet traction levels,
and contribute to a smooth, quiet ride.
Refer to the “Maintenance Plan” for the
proper maintenance intervals. More frequent
rotation is permissible if desired. The reasons
for any rapid or unusual wear should be
corrected prior to rotation being performed.
NOTE:
The premium Tire Pressure Monitor System
will automatically locate the pressure values
displayed in the correct vehicle position fol-
lowing a tire rotation.
The suggested rotation method is the
“rearward-cross” shown in the following dia-
gram.
DEPARTMENT OF
TRANSPORTATION
UNIFORM TIRE QUALITY
GRADES
The following tire grading categories were
established by the National Highway Traffic
Safety Administration. The specific grade
rating assigned by the tire's manufacturer in
each category is shown on the sidewall of the
tires on your vehicle.
All passenger vehicle tires must conform to
Federal safety requirements in addition to
these grades.
Treadwear
The Treadwear grade is a comparative rating,
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course. For example, a tire
graded 150 would wear one and one-half
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and may depart signifi-
cantly from the norm due to variations in
driving habits, service practices, and differ-
ences in road characteristics and climate.
Traction Grades
The Traction grades, from highest to lowest,
are AA, A, B, and C. These grades represent
the tire's ability to stop on wet pavement, as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance.
Tire Rotation
SERVICING AND MAINTENANCE
266
ComponentFluid, Lubricant, or Genuine Part
Engine Oil Filter We recommend you use MOPAR Engine Oil Filters.
Fuel Filters We recommend you use MOPAR Fuel Filter. Must meet 3 micron rating.
Using a fuel filter that does not meet the manufacturers filtration and water
separating requirements can severely impact fuel system life and reliability.
Fuel Selection Use good quality diesel fuel from a reputable supplier in your vehicle.
Federal law requires that you must fuel this vehicle with Ultra Low Sulfur
Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of
Low Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid
damage to the emissions control system. For most year-round service, No.
2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide
good performance. We recommend you use a blend of up to 5% biodiesel,
meeting ASTM specification D-975 with your diesel engine. This vehicle is
compatible with biodiesel blends greater than 5% but no greater than 20%
biodiesel meeting ASTM specification D-7467 provided the shortened main-
tenance intervals are followed as directed.
Diesel Exhaust Fluid MOPAR Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has
been API Certified to the ISO 22241 standard. Use of fluids not API
Certified to ISO 22241 may result in system damage.
NOTE:
If the vehicle is exposed to extreme cold
(below 20°F or -7°C), or is required to operate
at colder-than-normal conditions for pro-
longed periods, use climatized No. 2 diesel
fuel or dilute the No. 2 diesel fuel with 50%
No. 1 diesel fuel. This will provide better protection from fuel gelling or wax-plugging
of the fuel filters.
TECHNICAL SPECIFICATIONS
282
