Ford Explorer Transmission Fluid: Which Type Your Model Year Needs
The short answer
The correct transmission fluid for a Ford Explorer depends mainly on its model year and the automatic transmission fitted. Ford uses its own Mercon specifications, and they are not all interchangeable. In broad terms, recent Explorers with the 10-speed automatic use Mercon ULV, the 2011 to 2019 generation generally uses Mercon LV, and older Explorers generally use Mercon V or the earlier Mercon specification. Treat this as a starting point, not a final answer. The owner's manual, the fluid label or service information for your vehicle, or a Ford parts counter using your VIN (vehicle identification number) is the authority.
Fluid specification by generation
The table below shows the specification commonly associated with each Explorer generation. Transmission choice changed with engine and drivetrain within some generations, and the supplied brief included no source documents to confirm every combination. Use the table to narrow your search, then confirm against your own vehicle.
Generation (model years) | Typical automatic transmission | Fluid specification commonly listed | What to verify; 2020 onward | 10-speed automatic | Mercon ULV | Confirm for hybrid and performance variants, and for later model-year updates; 2011–2019 | 6-speed automatic | Mercon LV | Confirm which 6-speed unit your engine uses; 2006–2010 | 5-speed automatic, or 6-speed on V8 models | Mercon V for the 5-speed. The 6-speed may differ | V8 models need separate confirmation; 2002–2005 | 5-speed automatic | Mercon V | Confirm with the manual or label; 1991–2001 | 4- or 5-speed automatic | Mercon or Mercon V | Older Mercon is superseded. Ask a Ford parts counter for the current replacement
Why the Mercon type matters
Mercon V, Mercon LV and Mercon ULV are different fluid specifications, not quality grades of one product. LV stands for low viscosity and ULV for ultra-low viscosity. Each was designed for the friction materials, clutch control and internal clearances of particular transmissions. Using the wrong one can affect shift quality, and it can affect durability over time. Do not substitute one Mercon type for another unless Ford service information for your transmission specifically allows it.
Aftermarket fluids often carry multi-vehicle claims on the label. For an Explorer, look for a product that states it meets the exact Mercon specification your transmission requires. A product that only says it is suitable for Ford vehicles is not enough.
How to confirm the right fluid for your Explorer
Check the owner's manual. The capacities and specifications section lists the transmission fluid by name. Look for a fluid specification marked on the transmission, its level indicator or a nearby label, where your vehicle has one. Give your VIN to a Ford dealer parts department. It can identify the factory transmission and the current fluid part. If the transmission has been replaced or rebuilt, check with whoever did the work. The replacement unit may not match the original.
Capacity, level checks and service intervals
This article does not give fluid capacities or change intervals. No verified figures were supplied for each model year and transmission, and the amount needed for a partial drain differs from the amount needed to fill a dry transmission. Take both figures from the owner's manual or Ford service information. Note whether your driving falls under the manual's severe-service schedule, which typically covers towing, frequent short trips or extreme temperatures.
Checking the level is not the same on every Explorer. Many newer Ford automatics have no conventional pull-out dipstick. Their level may need to be checked at a fill or check plug, with the fluid at a specified temperature and the vehicle level. An accurate check usually needs the service procedure for your exact transmission. If you are unsure, a qualified shop can check the level without risk of overfilling or underfilling.
Don't confuse transmission fluid with other drivetrain fluids
All-wheel-drive and four-wheel-drive Explorers have other drivetrain units, such as a transfer case or power transfer unit and a rear differential. These may use gear oil or a separate specified fluid rather than automatic transmission fluid. Check the manual for each unit before buying fluid for a drivetrain service.
Next step
First identify your Explorer's model year and transmission. Then confirm the Mercon specification in the owner's manual or with a Ford parts counter using your VIN, and buy fluid that names that exact specification. Get the capacity and level-check procedure for your transmission before draining anything.