Maintenance Schedules Defined

MAINTENANCE SERVICES DEFINED
The Scheduled maintenance services, listed in in this section must be done at the times or mileages specified to assure the continued proper functioning of the emission control system. These, and all other maintenance services included in this manual, should be done to provide best vehicle performance and reliability. More frequent maintenance may be needed for vehicles in severe operating conditions such as dusty areas and very short trip driving.

Inspection and service also should be done any time a malfunction is suspected.

NOTE: Maintenance, replacement, or repair of the emission control devices and systems on your vehicle may be performed by any automotive repair establishment or individual using any automotive part which has been certified pursuant to U.S. EPA or, in the State of California, California Air Resources Board regulations.

There are two maintenance schedules that show the required service for your vehicle.

SCHEDULE "B"
It is for vehicles that are operated under one or more of the following conditions that are listed below and at the beginning of the schedule.
- Frequent short trips where the engine does not achieve full operating temperature (operating temperature defined as 190°F (66°C ) coolant temperature).
- Extensive engine idling (over 10 minutes per hour of operation) at ambient temperatures less than 32°F (0°C).
- Driving in dusty conditions.
- Frequent trailer towing.
- Taxi, police, or delivery service (commercial service).
- Off-road or desert operation.
- Extensive operation at high engine speeds (greater than 2900 rpm) and loads (greater than 70% throttle).

NOTE: Most vehicles are operated under the conditions listed for Schedule "B".

NOTE: If ANY of these apply to you then change your coolant every 101,250 miles (162 000 km) or 60 months, whichever comes first and follow schedule "B" of the Maintenance Schedules.

SCHEDULE "A"
- It is for vehicles that are not operated under any of the conditions listed under Schedule "B".
- Use the schedule that best describes your driving conditions.
- Where time and mileage are listed, follow the interval that occurs first.

CAUTION: Failure to perform the required maintenance items may result in damage to the vehicle.