1998 Ford F150 Owner Guide 1st Printing - Page 172

Maintenance and care The transmission fluid should be in this range if at room temperature (10°C-35°C [50°F-95°F]) (see figure to the right). ADD COLD DON'T ADD IF IN CROSSHATCHED AREA • CHECK WHEN HOT IDLING IN PARK HOT DO NOT ADD If your vehicle has been operated for an extended period at high speeds, in city traffic during hot weather or pulling a trailer, the vehicle should be turned off for about 30 minutes to allow the fluid to cool before checking. 1. Park the vehicle on a level surface and engage the parking brake. 2. With the parking brake engaged and your foot on the brake pedal, start the engine and move the gearshift lever through all of the gear ranges. Allow sufficient time for each gear to engage. 3. Latch the gearshift lever in P (Park) and leave the engine running. 4. Remove the dipstick, wiping it clean with a clean, dry lint free rag. 5. Install the dipstick making sure it is fully seated in the filler tube. 6. Remove the dipstick and inspect the fluid level. The fluid level should be in the crosshatched area on the dipstick. 172