Severe Service Defined

Two different maintenance schedules are provided, and should be used, depending upon the conditions under which the vehicle is mainly operated.

SEVERE SERVICE
Follow the Severe Service Schedule if your driving habits frequently include one or more of the following driving conditions:
- Repeated short trips of less than 5 miles (8 km).
- Repeated short trips of less than 10 miles (16 km) with outside temperatures remaining below freezing.
- Operating in hot weather in stop-and-go "rush hour" traffic.
- Extensive idling and/or low speed driving for long distances, such as police, taxi or door-to-door delivery use.
- Driving in dusty conditions.
- Driving on rough, muddy, or salt spread roads.
- Towing a trailer, using a camper or a car-top carrier.

NORMAL SERVICE
Follow the Normal Service Schedule if none of the driving conditions shown in Severe Service apply to your driving habits.