It's about time for the Ranger's first trans service, and I'm having kind of a hard time deciding between Valvoline's Mercon V or Maxlife. The trans specifically calls for Mercon V, not regular Mercon, so I was leaning towards the Mercon V. But looking at Valvoline's product data sheet, it says it's offically licensed for Mercon V, not just "recommended." So now I'm kind of leaning towards Maxlife, especially since I already use it in my other 2 vehicles.