Page 418 of 527

Engine Oil Filter
Refer to Fluids, Lubricants and Genuine Parts for the
correct part number. The engine oil filter should be
changed ateveryengine oil change.
Engine Oil And Filter Ð Change
Operate the engine until the coolant temperature reaches
140ÉF (60ÉC). Shut the engine OFF. Remove the oil drain
plug.
Use a container that can hold at least 12 quarts (11.3
Liters) to hold the used oil.
Always check the condition of the used oil. This can give
you an indication of some engine problems that might
exist.
²Thin, black oil indicates fuel dilution.
²Milky discoloration indicates coolant dilution.Clean the area around the oil filter base. Remove the filter
from the underside of the vehicle using a cap style oil
filter wrench.
Clean the gasket surface of the filter mount. The filter
gasket can stick on the filter mount. Make sure it is
removed.
Change the engine oil filter with every engine oil change.
Only a high quality Mopartfilter should be used to
assure most efficient service.
CAUTION!
The filtering medium of other aftermarket filters
may disintegrate. Debris from failed filters may plug
the piston oil cooling nozzles, resulting in scuffed
pistons and engine failure.
416 MAINTAINING YOUR VEHICLE
Page 424 of 527
Draining Fuel/Water Separator Filter (6.7L Diesel
Engine)
CAUTION!
Do not drain the fuel/water separator filter when the
engine is running.
CAUTION!
Do not prefill the fuel filter when installing a new
fuel filter. There is a possibility that debris could be
introduced into the fuel filter during this action. It is
best to install the filter dry and allow the in-tank lift
pump to prime the fuel system.
NOTE:The fuel filter and water separator assembly is
located on the driver's side of the engine. The best access
to the water drain valve is through the driver's side
wheel well.
NOTE:If water is detected in the water separator while
the engine is running or while the key is in the on
position, the WATER IN FUEL LIGHT will illuminate
and an audible chime will be heard five times. At this
point you should stop the engine and drain the water
from the separator.
422 MAINTAINING YOUR VEHICLE
Page 425 of 527

If the WATER IN FUEL LIGHT comes on and a single
chime is heard while you are driving, or with the key in
the ON position, there may be a problem with your water
separator wiring or sensor. See your authorized dealer
for service.
Upon proper draining of the water from the fuel filter, the
WATER IN FUEL LIGHT will remain illuminated for
approximately 10 seconds. If the water was drained
while the engine was running, the water in fuel light may
remain on for approximately three minutes.
NOTE:Care should be taken in disposing of used fluids
from your vehicle. Used fluids, indiscriminately dis-
carded, can present a problem to the environment. Con-
tact your local authorized dealer, service station, or
government agency for advice on recycling programs
and for where used fluids and filters can be properly
disposed of in your area.Drain a small amount from the fuel/water separator
filter monthly or when the WATER IN FUEL LIGHT is
on. Turn the drain valve located on the bottom of the
filter counterclockwise and allow any accumulated water
to drain into an approved container. Leave the drain
valve open until all water and contaminants have been
removed. Close the drain valve by turning it clockwise
when clean fuel is visible.
NOTE:The Fuel / Water separator drain valve is
located on the bottom of the fuel filter housing.
If more than a couple ounces of fuel has been drained,
follow the directions below for ªPriming if the engine has
run out of fuel.º
MAINTAINING YOUR VEHICLE 423
7
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WARNING!
Do not open the high pressure fuel system with the
engine running. Engine operation causes high fuel
pressure. High pressure fuel spray can cause serious
injury or death.
Priming if the engine has run out of fuel
1. Add a substantial quantity of fuel to the tank, approxi-
mately 5 to 10 gallons (19L to 38L).
2. Crank the engine for one to two seconds. If the engine
does not start, then release the key or starter button back
to the RUN position (do not turn the key back to the OFF
position). The electric fuel transfer pump will continue to
run and purge air from the system for about 25 seconds.
After 25 seconds, attempt to start the engine again.3. Start the engine using the normal starting procedure.
4. Repeat the procedure if the engine does not start.
CAUTION!
Do not engage the starter motor for more than 15
seconds at a time. Allow two minutes between the
cranking intervals.
NOTE:The engine may run rough until the air is forced
from all the fuel lines.
CAUTION!
Diesel fuel will damage black top paving surfaces.
Drain the filter into an appropriate container.
424 MAINTAINING YOUR VEHICLE
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WARNING!
Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain conditions
and be hazardous or explosive when mixed with
diesel fuel.
CAUTION!
Due to lack of lubricants in alcohol or gasoline, the
use of these fuels can cause damage to the fuel
system.
NOTE:A maximum blend of 5% biodiesel, meeting
ASTM specification D-6751 may be used with your
CumminstDiesel equipped vehicle. Use of biodieselmixture in excess of 5% can negatively impact the on-
engine fuel filter's ability to separate water from the fuel,
resulting in high pressure fuel system corrosion or dam-
age.
NOTE:As sufficient testing has not been completed,
ethanol blends are not recommended or approved for use
with your CumminstDiesel equipped vehicle.
NOTE:In addition, commercially available fuel addi-
tives are not necessary for the proper operation of your
CumminstDiesel equipped vehicle.
Intervention Regeneration Strategy ± EVIC
Message Process Flow (Catalyst Full Message)
(6.7L Diesel Engines Only)
Your new Cummins 6.7L diesel meets all EPA Heavy
Duty Diesel Engine Emissions Standards, resulting in the
lowest emitting diesel engine ever produced.
MAINTAINING YOUR VEHICLE 425
7
Page 482 of 527
FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluids, Lubricants and Genuine Parts
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology).
Engine Oil(6.7L Turbo Diesel)Use (SAE 15W-40, API CJ-4 Certified, that meets DaimlerChrysler Material
Standards MS-10902. Products meeting Cummins CES 20081 Standards may
also be used.)
Engine Oil Filter
(6.7L Turbo Diesel Engine)MopartEngine Oil Filter, P/N 05083285AA or equivalent.
Engine Fuel Filter
(6.7L Turbo Diesel Engine)MopartFuel Filter, P/N 05183410AA or equivalent. Must meet 7 micron rat-
ing.Using a fuel filter that does not meet the manufacturers filtration and
water separating requirements can severely impact fuel system life and re-
liability.
Crankcase Ventilation Filter
(6.7L Turbo Diesel Engine)MopartCCV Filter, P/N 68001433AA or equivalent.
480 MAINTAINING YOUR VEHICLE
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Component Fluids, Lubricants and Genuine Parts
Fuel Selection(6.7L Turbo Diesel
Engine)Use good quality diesel fuel from a reputable supplier in your vehicle. Fed-
eral law requires that you must fuel this vehicle with Ultra Low Sulfur High-
way Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sul-
fur 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 perfor-
mance. If the vehicle is exposed to extreme cold (below 20ÉF or -7ÉC), or is
required to operate at colder-than-normal conditions for prolonged 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.This vehicle is fully compatible with biodiesel
blends up to 5% biodiesel meeting ASTM specification D-975.
MAINTAINING YOUR VEHICLE 481
7
Page 487 of 527

take some washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades, this will help blade
performance.
Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the batteries and clean and tighten the termi-
nals as required.
²Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
²Check all lights and all other electrical items for correct
operation.
²Drain water from the fuel filter.
²Check Filter MinderŸ (If Equipped). Replace air
cleaner filter element if necessary.At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the U-Joints (if equipped) and front suspension
components.
²Check the automatic transmission fluid level.
²Check the manual transmission fluid level.
²Check the coolant level, hoses, and clamps.
²Lubricate outer tie rod ends (4X4) models only.
²Lubricate Front Drive Shaft Fitting (4X4).
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
MAINTENANCE SCHEDULES 485
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