To find the correct ATF, you must check your owner's manual. It will specify the correct fluid type (e.g., ATF+4, Mercon, etc.) for your truck's transmission.
If you don't have the owner's manual, you can try these steps:
1. Check the transmission dipstick: Sometimes the recommended fluid type is printed on the dipstick itself.
2. Look for a sticker under the hood: There may be a sticker near the transmission or elsewhere under the hood that lists the recommended fluids.
3. Find your transmission's identification number: This number can be used to look up the correct fluid type online or at a parts store. The identification number is usually stamped on a tag on the transmission itself. You may need to get under the vehicle to find it.
4. Consult a parts store: Provide them with the year, make, model, and engine size of your truck. They can usually look up the correct fluid type.
Using the wrong ATF can severely damage your transmission. Do not attempt to guess. Always use the fluid specified by the manufacturer.
