Replacement Intervals (Liberty)

REPLACEMENT INTERVALS (LIBERTY) ⁽¹⁾

Component

Months

Miles

Air Filter

Normal Service

30,000

Severe Service

⁽²⁾

15,000

Automatic Transmission

Normal Service

⁽²⁾

⁽³⁾ 100,000

Severe Service

⁽²⁾

⁽⁴⁾ 60,000

Coolant

⁽⁵⁾

Drive Belt

Normal Service

⁽⁶⁾ 60,000

Severe Service

⁽²⁾

⁽⁷⁾ 30,000

Front & Rear Axle Fluid

Severe Service

⁽²⁾

12,000

Manual Transmission

⁽⁸⁾

Oil & Filter

Normal Service

7500

Severe Service

⁽²⁾

3000

PCV Valve ⁽⁵⁾

Normal Service

60,000

Severe Service

⁽²⁾

30,000

Spark Plugs

30,000

Transfer Case

Severe Service

⁽²⁾

60,000

⁽¹⁾

Different interval may be required for normal and severe service. Severe service is described as frequent short trip driving (less than 5 miles), frequent driving in dusty conditions, extensive idling, trailer towing, sustained high speed operation, off road driving, desert operation, cold climate operation and commercial service.

⁽²⁾	Monthly service interval does not apply.

⁽³⁾	Change fluid, main sump filter and spin-on cooler return filter.

⁽⁴⁾	Change fluid and main sump filter. Change spin-on cooler return filter at 90,000 miles.

⁽⁵⁾	Replace coolant at 60 months regardless of mileage.

⁽⁶⁾	After initial inspection, check every 30,000 miles or 24 months afterward.

⁽⁷⁾	After initial inspection, check every 15,000 miles.

⁽⁸⁾	Service intervals are not available from manufacturer. Check fluid level at every engine oil change.