REPLACEMENT INTERVALS

Component

Interval - Miles (Normal Schedule)

⁽¹⁾ Interval - Miles (Special Operating Conditions)

Accessory Drive Belt

⁽²⁾

⁽³⁾

Air Filter

30,000

⁽³⁾

Cabin Air Filter

15,000

⁽³⁾

Coolant

⁽⁴⁾⁽⁵⁾

⁽³⁾

NGV Coalescer/Fuel Filter

⁽⁶⁾

NGV Fuel Tanks

⁽⁷⁾

Fuel Filter

30,000

15,000

Oil & Filter

5000

3000

PCV Valve

100,000

⁽³⁾

Rear Axle Fluid

150,000

100,000

Spark Plugs

100,000

60,000

Timing Belt ⁽⁸⁾

120,000

⁽³⁾

A/T Fluid

30,000 ⁽⁹⁾

30,000 ⁽¹⁰⁾

M/T Fluid

⁽¹¹⁾

⁽³⁾

⁽¹⁾	Applies to vehicles with extensive idling and/or low-speed driving for long distances. As in heavy commercial use such as delivery, taxi, patrol car or livery.

⁽²⁾	On Escort, replace every 60,000 miles. On all other vehicles, replace at 150,000 miles if not replaced within last 100,000 miles.

⁽³⁾	If vehicle is driven in dusty conditions or used under special operating conditions, inspect and replace as required.

⁽⁴⁾	Green engine coolant replaced at 45,000 miles, and then every 30,000 miles thereafter. Orange engine coolant replaced at 150,000 miles.

⁽⁵⁾	Yellow engine coolant replaced at 5 years or 100,000 miles (which ever comes first). After initial change, replace Yellow coolant every 3 years or 50,000 miles.

⁽⁶⁾	Every 30,000 miles, drain coalescent fuel filter bowl and replace filter.

⁽⁷⁾	Fuel tanks for Compressed Natural Gas (CNG) vehicles, should be inspected every 30,000 miles and should be replaced every 15 years.

⁽⁸⁾	On Cougar, Escort and Focus equipped with 2.0L (VIN B, 3 or 5) engines only.

⁽⁹⁾	On vehicles equipped with AX4S, 4F50N or 4F27E only. All other vehicles, replace A/T fluid at 150,000 miles.

⁽¹⁰⁾	All vehicles.

⁽¹¹⁾	On LS models, replace M/T fluid at 60,000 miles. On all others, replace M/T fluid at 120,000 miles.

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

Service Intervals & Specifications

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?

Safety Warning

Service Intervals &amp; Specifications

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?

Service Intervals & Specifications