Check the "Capacities and Specifications" section in the back of your manual.

💡 Never mix different types of Mercon. While "LV" stands for Low Viscosity, it is not interchangeable with "V" or "ULV" unless specifically noted by Ford for your model year.

For most modern Ford F-250s, the short answer is or Mercon V , but the exact type depends entirely on your truck's model year and engine .

To give you the most accurate capacity and part number, could you tell me: What is the of your F-250?