Intelligent Oil-Life Monitor
Diesel Engines
Your vehicle is equipped with an Intelligent Oil-Life Monitor that determines when you should change the engine oil based on how your vehicle is used. By using several important factors in its calculations, the monitor helps reduce the cost of owning your vehicle and reduces environmental waste at the same time.
This means you do not have to remember to change the oil on a mileage-based schedule. Your vehicle lets you know when an oil change is due by displaying a message in the information display.
The following table provides examples of vehicle use and its impact on oil change intervals. It is a guideline only. Actual oil change intervals depend on several factors and generally decrease with severity of use.
When to Expect the OIL CHANGE REQUIRED Message
|
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Interval
| Vehicle Use and Example
|
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7,500–10,000 mi (12,000–16,000 km)
| Normal
|
Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling
|
5,000–7,500 mi (8,000–12,000 km)
| Severe
|
Moderate to heavy load or towing
Mountainous or off-road conditions
Extended idling
Extended hot or cold operation
|
3,000–5,000 mi (5,000–8,000 km)
| Extreme
|
Maximum load or towing
Extreme hot or cold operation
|
Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Information Display1
|
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Change engine oil and filter.2
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Rotate tires, inspect tire wear and measure tread depth.
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Perform a multi-point inspection (recommended).
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Inspect the automatic transmission fluid level (if equipped with dipstick). Consult your dealer for requirements.
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Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and parking brake.
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Inspect the engine cooling system strength and hoses.
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Inspect the exhaust system and heat shields.
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Inspect front axle and U-joints. Lubricate if equipped with grease fittings (Four–wheel drive vehicles).
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Inspect the half-shaft boots.
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Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints. Lubricate any areas with grease fittings.
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Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
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Fuel and water separator. Drain if necessary (or if indicated by the information display).
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Refill the diesel exhaust fluid tank.
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Inspect the air filter restriction gauge. Replace the filter if necessary.
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1 Do not exceed one year or
10,000 mi (16,000 km) between service intervals.
Other Maintenance Items 1
|
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Every
20,000 mi (32,000 km)
| Replace cabin air filter.
|
Every
30,000 mi (48,000 km)
| Replace engine air filter.
|
Replace the engine-mounted and frame-mounted fuel filters.
|
At
100,000 mi (160,000 km)
| Change engine coolant. 2
|
Every
100,000 mi (160,000 km)
| Replace spark plugs.
|
Inspect accessory drive belt(s). 3
|
Every
150,000 mi (240,000 km)
| Change automatic transmission fluid and filter.
|
Change front axle fluid (Four-wheel drive vehicles).
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Change rear axle fluid.
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Change transfer case fluid (Four-wheel drive vehicles).
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Replace accessory drive belt(s).
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1 Perform these maintenance items within
3,000 mi (4,800 km) of the last engine oil and filter change. Do not exceed the designated distance for the interval.
2 Initial replacement at six years or
100,000 mi (160,000 km), then every three years or
50,000 mi (80,000 km).
3 After initial inspection, inspect every other oil change until replaced.