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Makes 🢒 GMC_Truck 🢒 2003 🢒 TopKick C-Series (Conventional) C4/C5 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Maintenance Schedule

Maintenance Schedule Gasoline

The services shown in this schedule up to 166 000 km (100,000 mi) should be performed after 166 000 km (100,000 mi) at the same intervals. The services shown after 166 000 km (100,000 mi) should be performed at those intervals.

Refer to Explanation of Scheduled Services for further explanation of the maintenance services.

160 km (100 miles)

Perform the wheel stud nut service. (34)

1 600 km (1,000 miles)

    • Perform the wheel stud nut service. (34)
    • Perform the rear axle air shift motor service. (10)

12 000 km (7,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

24 000 km (15,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Inspect the engine air cleaner filter if you are driving in dusty conditions and replace the filter if necessary. (3)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)

32 000 km (20,000 miles)

Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

36 000 km (22,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core.
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen, or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

48 000 km (30,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3  months, whichever occurs first). (1)(6)
    • Inspect the engine air cleaner filter if you are driving in dusty conditions and replace the filter if necessary. (3)
    • Perform the chassis lubrication service (or every 6  months, whichever occurs first). (11)
    • Replace the fuel filter(s) (or every 12 months, whichever occurs first). (3)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the engine drive belts service (or every 12 months, whichever occurs first). (17)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)

60 000 km (37,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

64 000 km (40,000 miles)

Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

72 000 km (45,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Inspect the engine air cleaner filter if you are driving in dusty conditions and replace the filter if necessary. (3)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core.
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first).
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

80 000 km (50,000 miles)

Inspect the air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).

84 000 km (52,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

96 000 km (60,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Inspect the engine air cleaner filter if you are driving in dusty conditions and replace the filter if necessary.
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Replace the fuel filter(s) (or every 12 months, whichever occurs first). (3)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6  months, whichever occurs first). (8)
    • Perform the engine drive belts service (or every 12 months, whichever occurs first). (17)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

108 000 km (67,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core.
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24  months, whichever occurs first, and whenever hubs are removed). (20)(34)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

120 000 km (75,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the fuel tank, fuel cap and fuel lines service (or every 72 months, whichever occurs first). (3)(24)
    • Perform the EGR system inspection (or every 72 months, whichever occurs first). (3)(25)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the engine drive belts service (or every 12 months, whichever occurs first). (17)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)

128 000 km (80,000 miles)

Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

132 000 km (82,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the wheel bearings service -- Eaton Axle (oil-filled) (or every 24 months, whichever occurs first). (20)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

144 000 km (90,000 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Replace the fuel filter(s) (or every 12 months, whichever occurs first). (3)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the engine drive belts service (or every 12 months, whichever occurs first). (17)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

156 000 km (97,500 miles)

    • Check the Oil Life System. If the engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

160 000 km (100,000 miles)

    • Perform the spark plug service. (3)(23)
    • Change the power steering fluid (or every 36 months, whichever occurs first). (12)
    • Replace the power steering reservoir filter element (or every 24 months, whichever occurs first).
    • Perform the front axle service. (29)
    • Perform the rear axle service -- Eaton, Rockwell, Spicer Axles (or every 12 months, whichever occurs first). (28)
    • Perform the exhaust brake service, if equipped. Check for excessive spindle free play and smooth operation. Lubricate the ball joint cap.
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).
    • Inspect the air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).
    • Perform the manual transmission (ZF 6-speed only) fluid replacement (or every 48 months, whichever occurs first).

192 000 km (120,000 miles)

    • C600, C700 and C800: Replace the engine drive belts
    • C400 and C500: Perform the engine drive belts service (17)

240 000 km (150,000 miles)

Perform the cooling system service (or every 60 months since last service, whichever occurs first). (3)(27)

320 000 km (200,000 miles)

Remove, disassemble, clean and inspect the air brake trailer supply valve (or every 2 years, or every 7,200 hours, whichever occurs first).

400 000 km (250,000 miles)

  1. Perform the rear axle service -- Eaton, Rockwell, Spicer Axles (or every 36 months, whichever occurs first). (28)
  2. Perform the manual transmission (except ZF 6-speed) fluid replacement (or every 60 months, whichever occurs first).

480 000 km (300,000 miles)

Remove, disassemble, clean and inspect the air brake air dryer (or every 3 years, or 10,800 hours, whichever occurs first). Replace the desiccant on Bendix-Westinghouse units.

Maintenance Schedule Diesel

The services shown in this schedule up to 166 000 km (100,000 mi) should be performed after 166 000 km (100,000 mi) at the same intervals. The services shown after 166 000 km (100,000 mi) should be performed at those intervals.

Refer to Explanation of Scheduled Services for further explanation of the maintenance services.

160 km (100 miles)

Perform the wheel stud nut service. (34)

1 600 km (1,000 miles)

    • Perform the wheel stud nut service. (34)
    • Perform the rear axle air shift motor service. (10)

12 000 km (7,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

16 000 km (10,000 miles)

Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)

24 000 km (15,000 miles)

    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6  months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and under hood insulation service. (4)(5)(19)

32 000 km (20,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

36 000 km (22,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core.
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen, or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900  hours, whichever occurs first). (33)

48 000 km (30,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)

60 000 km (37,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

64 000 km (40,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

72 000 km (45,000 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first).
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

80 000 km (50,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Inspect the air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).

84 000 km (52,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

96 000 km (60,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

108 000 km (67,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core.
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Perform the wheels and tires service. (14)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2  months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

112 000 km (70,000 miles)

Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)

120 000 km (75,000 miles)

    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Perform the wheels and tires service. (14)
    • Perform the fuel tank, fuel cap and fuel lines service (or every 72 months, whichever occurs first). (3)(24)
    • Perform the EGR system inspection (or every 72 months, whichever occurs first). (3)(25)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)

128 000 km (80,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

132 000 km (82,500 miles)

    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the wheels and tires service. (14)
    • Perform the wheel bearings service -- Eaton Axle (oil-filled) (or every 24 months, whichever occurs first). (20)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)

144 000 km (90,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)
    • Replace the fuel filter.
    • Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)
    • Perform the cooling system service:
       - Clean the cooling system filler cap with clean water.
       - Clean the core
       - Pressure test the cap and the system for proper pressure capability and inspect the condition of the cooling and heater hoses and clamps.
       - Replace the hoses if cracked, swollen or damaged.
    • Perform the wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever the hubs are removed). (20)(34)
    • Perform the steering system service. (12)
    • Perform the front and rear suspension service. (13)
    • Perform the spring to axle U-bolts and shackle bolts service. (15)
    • Perform the exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
    • Inspect the door hinge pins and bushings and replace as necessary.
    • Perform the wheels and tires service. (14)
    • Perform the hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
    • Perform the parking brake service (or every 6 months, whichever occurs first). (8)
    • Perform the thermostatically controlled engine cooling fan service. (4)(18)
    • Perform the shields and underhood insulation service. (4)(5)(19)
    • Perform the rear axle air shift motor service. (10)
    • Perform the air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
    • Perform the evaporative control system service, if equipped (or every 24 months, whichever occurs first). (3)(22)
    • Perform the air brake service (or every 6 months, whichever occurs first). (30)
    • Perform the air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
    • Check the air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
    • Clean the air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).
    • Lubricate the linkage.
    • Perform the air brake chamber service (or every 2 months, whichever occurs first). (32)
    • Perform the trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

156 000 km (97,500 miles)

   • 

Check the fluid levels (or every 3 months, whichever occurs first). (1)(6)

   • 

Perform the chassis lubrication service (or every 6 months, whichever occurs first). (11)

   • 

Perform the wheels and tires service. (14)

   • 

Perform the parking brake service (or every 6 months, whichever occurs first). (8)

160 000 km (100,000 miles)

    • Change the engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
    • Inspect the engine drive belt. Replace as necessary.
    • Change the power steering fluid (or every 36 months, whichever occurs first). (12)
    • Replace the power steering reservoir filter element (or every 24 months, whichever occurs first).
    • Perform the front axle service. (29)
    • Perform the rear axle service -- Eaton, Rockwell, Spicer Axles (or every 12  months, whichever occurs first). (28)
    • Perform the exhaust brake service (if equipped). Check for excessive spindle free play and smooth operation. Lubricate the ball joint cap.
    • Perform the air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).
    • Inspect the air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).
    • Perform the manual transmission (ZF 6-speed only) fluid replacement (or every 48 months, whichever occurs first).

240 000 km (150,000 miles)

    • Perform the cooling system service (or every 60 months since last service, whichever occurs first).
    • Inspect the engine drive belt. Replace as necessary.

320 000 km (200,000 miles)

    • Remove, disassemble, clean and inspect the air brake trailer supply valve (or every 2 years, or every 7,200 hours, whichever occurs first).
    • Inspect the engine drive belt. Replace as necessary.

400 000 km (250,000 miles)

    • Perform the rear axle service -- Eaton, Rockwell, Spicer Axles (or every 36 months, whichever occurs first). (28)
    • Perform the manual transmission (except ZF 6-speed) fluid replacement (or every 60 months, whichever occurs first).

480 000 km (300,000 miles)

Remove, disassemble, clean and inspect the air brake air dryer (or every 3 years, or 10,800 hours, whichever occurs first). Replace the desiccant on Bendix-Westinghouse units.