What kind of transmission fluid do you put in your 91 Ford Explorer?
A 1991 Ford Explorer uses Dexron II or Mercon ATF transmission fluid. However, it's crucial to check your owner's manual. While Dexron II and Mercon were often interchangeable at that time, there might be a specific recommendation for your particular transmission type (e.g., A4LD). Using the wrong fluid can damage your transmission.