Section 00-03: Maintenance and Lubrication | 1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual |
Follow the Normal Schedule for most normal everyday driving conditions.
Follow the Severe-Duty Schedule if driving habits frequently include one or more of the following conditions:
NOTE: Idling the engine for extended periods will accumulate more hours of use on the vehicle than actually indicated by the mileage odometer. Consequently, the odometer reading can be misleading when determining the right time to change engine oil and filter.
If the vehicle is used in a manner that allows it to remain stationary while the engine is running for long periods (door-to-door delivery, power/utility company trucks or similar duty), then Ford recommends increasing frequency of oil and filter changes to an interval equivalent to 200 engine hours of use. Since most vehicles are not equipped with hourmeters, it may be necessary to approximate idle time and plan oil/filter changes accordingly.