* Transmission Type: The transmission oil capacity varies depending on the type of transmission your truck has. A 1990 F250 could have come equipped with several different transmissions (like the C6, E4OD, etc.). You'll need to identify which transmission you have.
* Specific Model: Even within the same transmission type, there may be minor variations in capacity depending on the specific model year and any modifications to your truck.
How to Find the Information:
1. Check Your Owner's Manual: The best source for this information is your vehicle's owner's manual. It will provide the specific capacity for your transmission.
2. Consult a Repair Manual: A repair manual for your specific year and model truck will also provide this information.
3. Contact a Ford Dealer: A Ford dealership can look up the information based on your VIN (Vehicle Identification Number).
4. Online Resources: Websites like AllDataDIY or Mitchell 1 can provide technical information, including transmission capacities, if you have the VIN.
Important Note: When checking transmission fluid, make sure it's at the correct level and condition. If the fluid is dark, burnt, or smells bad, it's time for a transmission fluid change.
