F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
2. Remove the transmission fluid pan drain plug and allow the fluid to drain.
3. NOTE: If equipped with a radiator in-tank transmission fluid cooler or an auxiliary cooler, the coolers will need to be flushed.
Only flush the cooler tubes and fluid coolers if carrying out a transmission overhaul.
Refill
1. Install the drain plug.
2. CAUTION: The use of any other transmission fluid than specified can result in the transmission failing to operate in a normal manner or
transmission failure.
Fill the transmission.
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Add 7.1 liters (7.5 quarts) of clean automatic transmission fluid to the transmission through the fluid filler tube.
3. Start the engine. Move the transmission range selector lever through all the gear ranges, checking for engagements.
4. With the engine running and the transmission at normal operating temperature 66 - 77°C (150 - 170°F), check and adjust the transmission fluid
level, and check for any leaks. If fluid is needed, add fluid in increments of 0.24-liter (0.5-pint) until the correct level is achieved (fluid should be
in the cross-hatched area of the fluid level indicator).
