REPLACEMENT INTERVALS (MONTERO)

Component

Months

Miles

Air Filter

Normal Service

⁽¹⁾

30,000

Severe Service

⁽¹⁾

15,000

Automatic Transmission Fluid

⁽¹⁾

⁽²⁾

Coolant

⁽¹⁾

⁽³⁾

Front & Rear Axle Fluid

⁽¹⁾

⁽⁴⁾ 30,000

Oil

Normal Service

⁽⁵⁾ 7500

Severe Service

3000

Oil Filter

Normal Service

⁽⁶⁾ 15,000

Severe Service

6000

Spark Plugs ⁽⁷⁾

Normal Service

⁽¹⁾

105,000

Severe Service

⁽¹⁾

15,000

Spark Plug Wires

60,000

Timing Belt

⁽¹⁾

⁽⁸⁾ 60,000

Transfer Case Fluid

⁽¹⁾

⁽²⁾

⁽¹⁾	Monthly intervals not available from manufacturer.

⁽²⁾	Inspect fluid every year or 15,000 miles. Under severe service conditions, change fluid every 30,000 miles.

⁽³⁾	Change coolant at first 4 years or 60,000 miles, then change after every 2 years or 30,000 miles.

⁽⁴⁾	With limited-slip differential, change fluid every 30,000 miles. Without limited-slip differential, check fluid level every 30,000 miles.

⁽⁵⁾	Replace oil every year if annual mileage is less than 7500 miles.

⁽⁶⁾	Replace oil filter at oil change if annual mileage is less than 7500 miles.

⁽⁷⁾	Use Iridium spark plugs only.

⁽⁸⁾	On California, Massachusetts & Connecticut vehicles, changing timing belt at 60,000 miles is recommended, but not required. Change timing belt at 100,000 miles, if not previously changed.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Replacement Intervals (Montero)

Use the Manual With the Right Hardware

When to See a Mechanic