The manual will specify the correct type of fluid (e.g., Mercon, Mercon V, etc.) and may even list a specific Ford fluid part number. Using the wrong fluid can severely damage your transmission.
If you don't have the owner's manual, you can try:
* Checking the transmission dipstick: Sometimes the type of fluid is printed on the dipstick itself.
* Looking for a sticker under the hood: Often, there's a sticker near the engine compartment that lists the recommended fluids for the vehicle.
* Using the VIN: You can use your vehicle's Vehicle Identification Number (VIN) at a Ford dealership or online parts retailer to determine the correct transmission and fluid type.
Don't attempt a transmission fluid change without knowing the correct type. Incorrect fluid can lead to costly repairs.