What type of transmission oil should be used in a 1997 Mercury mountaineer 5.0 v8?
The 1997 Mercury Mountaineer 5.0L V8 uses a Mercon ATF transmission fluid. It's crucial to use a fluid that specifically meets the Mercon specification. Don't use Dexron, as they are not interchangeable. You can find Mercon ATF at most auto parts stores.