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.
• Inspect front end, and lubricate — If equipped with serviceable fittings.
• Lube the front drive shaft fitting (4X4 models only).
Inspection and service should also be performed anytime a malfunction is observed
or suspected. Retain all receipts.
M A I N T A I N I N G Y O U R V E H I C L E
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