30000 MI or 48000 KM
LubricateSteering and Suspension
Lubricate the front suspension (or every 12 months, whichever occurs first). Lubricate ball joints, kingpin bushings, steering linkage, transmission shift linkage, transfer case shift linkage, parking brake cable guides, rear driveline center splines, front axle propshaft splines and brake pedal springs. Ball joints and kingpin bushings should not be lubricated unless their temperature is -12 degrees C (10 degrees F) or higher or they could be damaged.
Clutch Release Fork, M/T
Lubricate clutch fork ball stud (5-speed manual transmission with RPO MW3 only).
Inspect/Adjust
Idle Speed
Inspect
Radiator Cooling Fan
If your engine has a thermostatically controlled cooling fan, inspect hoses and ducts for proper hook-up (or every 12 months, whichever occurs first). Be sure the valve works properly. U.S. vehicles only.
Heat Shield, Exhaust
Inspect shields and underhood insulation For damage or looseness. Adjust or replace as required. U.S. vehicles only.
Fluid - Differential
Inspect front/rear axle fluid level and add fluid as needed. Inspect constant velocity joints and axle seals for leaking. If driving in dusty areas or towing a trailer, drain fluid and refill every 25 000 km (15,000 miles). 3500 HD models with applications requiring extreme overload/trailer towing conditions and high-speed (above 45 mph or 70 km/h) conditions for extended periods of time must have the drive axle fluid changed every (3,000 miles) 5 000 km.
Air Cleaner Fresh Air Duct/Hose
Inspect the air intake system installation to assure that gaskets are properly sealed and that all hose connections, fasteners and other components are tight. Also check to be sure that the air cleaner housing is properly seated and the cover fits tightly. Tighten connections and fasteners or replace damaged parts as necessary. U.S. vehicles only.
Replace
Oil Filter, Engine
Or every 3 months.
Fuel Filter
Fluid Filter - A/T
Only vehicles under 8,600 lbs. GVWR.
Fluid - Transfer Case
In heavy or frequent trailer towing applications, drain the fluid and refill every 50,000 km (30,000 miles).
Fluid - A/T
Only vehicles under 8,600 lbs. GVWR. Manual transmission fluid does not require change.
Engine Oil
Or every 3 months.
Air Filter Element
Dusty conditions may require more frequent filter replacement. Extreme dust and dirt operating conditions (off-road), may require the air filter to be checked as often as every 300 miles (483 km) and replaced as necessary.
Flush
Cooling System
Drain, flush and refill cooling system with coolant (or every 24 months). Inspect the coolant hoses and replace the hoses if the following conditions exist; cracking, swelling, deterioration. Tighten all of the clamps (except the constant tension clamps). Remove debris and clean the outside of the radiator and air conditioning condenser. Wash the radiator neck. Pressure test the radiator and the cap.