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MAINTENANCE SCHEDULE — 6.7L CUMMINS DIESEL ENGINE
CAUTION!
Failure to perform the required maintenance items may result in damage to the
vehicle.
At Each Stop For Fuel
Check the engine oil level at least 30 minutes after a fully warmed engine is shut off.
Checking the oil level while the vehicle is on level ground will improve the accuracy
of the oil level reading. Add oil only when the level is at or below the ADD or MIN
mark.
Once A Month
• Inspect the batteries, and clean and tighten the terminals as required.
• Check the fluid levels of the coolant reservoir, brake master cylinder, and
automatic transmission (if equipped), and add as needed.
At Each Oil Change
• Change the engine oil filter.
• Inspect the exhaust system.
• Inspect engine air filter.
• Check the coolant level, hoses, and clamps.
• Lubricate outer tie rod ends.
Inspection and service should also be performed anytime a malfunction is observed
or suspected. Retain all receipts.
Oil Change Indicator System — Cummins® Diesel
Your vehicle is equipped with an engine oil change indicator system. This system will
alert you when it is time to change your engine oil by displaying the words “Oil
Change Due” on your Electronic Vehicle Information Center (EVIC). The oil change
reminder will remind the owner to change the engine oil every 15,000 miles or
500 hours, whichever comes first, except for the Chassis Cab models that are using
B20 biodiesel, which are 12,500 miles or 400 hours, whichever comes first. Failure
to change the engine oil per the maintenance schedule can result in internal engine
damage.
For information on resetting the Oil Change Indicator message, refer to “Oil Change
Due” under “Electronic Vehicle Information Center (EVIC)/EVIC Warning Lights” in
“Understanding Your Instrument Panel” for further information.
Replace the engine oil and oil filter every 15,000 miles (24 000 km) or six months, or
sooner if prompted by the oil change indicator system. Under no circumstances should oil
change intervals exceed 15,000 miles (24 000 km) or six months, whichever comes first.
MAINTAINING YOUR VEHICLE
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