* Automatic vs. Manual: The type of transmission fluid depends on whether your Thunderbird has an automatic or manual transmission.
* Transmission Type: Even within automatic transmissions, Ford used different types (like AOD, 4R70W, etc.) over the years. Each transmission type requires a specific fluid.
How to find the right transmission fluid:
1. Check your owner's manual: The manual will specify the correct fluid type for your vehicle.
2. Look at the dipstick: Many automatic transmissions have a dipstick with markings indicating the type of fluid it requires.
3. Check the transmission tag: Your transmission might have a tag attached to it with the model number. This number can help you find the correct fluid online or at an auto parts store.
4. Consult a mechanic: If you're unsure, the best approach is to contact a qualified mechanic. They can identify the transmission type and recommend the appropriate fluid.
Important Note: Using the wrong transmission fluid can damage your transmission. It's crucial to use the fluid that is specifically designed for your vehicle's transmission.
