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Other maintenance items
1
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection), additive (corro-
sion inhibitor) strength, coolant level, and hoses. Add
coolant additive if necessary.
Replace the air inlet foam filter.
Every 45000 miles (72000
km)
Replace the front wheel bearing grease and grease seal
if using non-sealed bearings. (Two-wheel drive vehicles)
Every 60000 miles (96000
km)
Inspect the accessory drive belt(s). 2
At 90000 miles (144000
km)
Change the crankcase ventilation filter assembly.
Every 100000 miles
(160000 km) Change the engine and secondary cooling system coolant. 3
Change the automatic transmission fluid and filter. Consult
an authorized dealer for requirements.
Every 150000 miles
(240000 km) Replace the accessory drive belt(s) if not replaced within
the last 100000 miles (160000 km)
Replace the front wheel bearings and seals if using non-
sealed bearings. (Two-wheel drive vehicles)
Change axle(s) fluid. (see exceptions)
Change transfer case fluid. (if equipped)
1 You can perform these maintenance items within 3000 miles (4800 kilometers) of the
last oil change. Do not exceed the designated distance for the interval.
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.
2 Perform follow-up inspections every 15000 miles (24000 kilometers) after the initial
inspection. Replace the belt(s) at 150000 miles (240000 kilometers).
3 Initial change is at six years or 100000 miles (160000 kilometers), then every three years
or 45000 miles (72000 kilometers).
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SPECIAL OPERATING
CONDITIONS SCHEDULED
MAINTENANCE
Gasoline Engine(s)
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle
occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician. Towing a trailer or using a car-top carrier
Inspect and lubricate U-joints if equipped with grease
fittings.
Inspect frequently, service
as required
See axle maintenance items under
Exceptions.
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Every 5000 miles (8000
km)
Rotate tires*
, inspect tires for wear and measure tread
depth.
Change engine oil and filter.
Every 5000 miles (8000
km) or six months
Inspect and lubricate U-joints if equipped with grease
fittings.
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
Change transfer case fluid (Four-wheel drive vehicles).
Every 60000 miles (96000
km)
Replace spark plugs.
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted. Extensive idling or low-speed driving for long distances, as in heavy commercial use
(such as delivery, taxi, patrol car or livery)
Replace engine air filter.
Inspect frequently, service
as required
Inspect brake system.
Every 5000 miles (8000
km)
Inspect wheels and related components for abnormal
noise, wear, looseness or drag.
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Extensive idling or low-speed driving for long distances, as in heavy commercial use
(such as delivery, taxi, patrol car or livery)
Lubricate control arm and steering ball joints if equipped
with grease fittings.
Rotate tires *
, inspect tires for wear and measure tread
depth.
Inspect and lubricate U-joints if equipped with grease
fittings.
Every 5000 miles (8000
km) or six months
Change engine oil and filter.
Every 5000 miles (8000
km), six months or 200
engine hours
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
Replace spark plugs.
Every 60000 miles (96000
km)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted. Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Replace engine air filter.
Inspect frequently, service
as required
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Every 5000 miles (8000
km)
Rotate tires*
, inspect tires for wear and measure tread
depth.
Change engine oil and filter.
Every 5000 miles (8000
km) or six months
Inspect and lubricate U-joints if equipped with grease
fittings.
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
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Off-road operation
Inspect steering linkage, ball joints and U-joints, Lubricate
if equipped with grease fittings.
Inspect frequently, service
as required
Replace engine air filter.
Change engine oil and filter.
Every 5000 miles (8000
km) or six months
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires*
, inspect tires for wear and measure tread
depth.
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted. Exclusive use of E85 (Flex fuel vehicles only)
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel.
Every oil change interval
Diesel Engine(s)
If you operate your vehicle primarily in any
of the f
ollowing conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle
occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician.
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Towing a trailer or using a car-top carrier
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
See the axle maintenance items under Exceptions.
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), 6 months, 600 engine
hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every 30000 miles (48000
km)
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. Add coolant additive if
necessary.
Every 30000 miles (48000
km) or 1200 engine hours
Flush and refill the coolant. Do not add coolant additive.
Every 60000 miles (96000
km) or 2400 engine hours
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400
engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hours
thereafter.
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Frequent or extended idling (over 10 minutes per hour of normal driving) or frequent low-
speed operation if your vehicle is used for stationary operation
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. Add coolant additive if
necessary.
Every 30000 miles (48000
km) or 1200 engine hours
Flush and refill the coolant. Do not add coolant additive.
Every 60000 miles (96000
km) or 2400 engine hours
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400
engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hours
thereafter.
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Frequent low-speed operation, consistent heavy traffic under 25 mph (40 km/h) or long
rush-hour traffic
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. Add coolant additive if
necessary.
Every 30000 miles (48000
km) or 1200 engine hours
Flush and refill the coolant. Do not add coolant additive.
Every 60000 miles (96000
km) or 2400 engine hours
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400
engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hours
thereafter. Sustained high-speed driving at gross vehicle weight rating (maximum loaded weight
for vehicle operation)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every 30000 miles (48000
km)
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Sustained high-speed driving at gross vehicle weight rating (maximum loaded weight
for vehicle operation)
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. Add coolant additive if
necessary.
Every 30000 miles (48000
km) or 1200 engine hours
Flush and refill the coolant. Do not add coolant additive.
Every 60000 miles (96000
km) or 2400 engine hours
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary cooling
system. Operating the engine with excessive coolant additive may cause overheating which
could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400
engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hours
thereafter. Operating in sustained ambient temperatures below -10°F (-23°C) or above 100°F (38°C)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every 30000 miles (48000
km) Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Rotate the tires*
, inspect the tires for wear and measure
tread depth.
Every 7500 miles (12000
km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
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