For the 2017 Fusion’s gasoline models with the 6-speed automatic transmission, Ford specifies Mercon LV automatic transmission fluid. The Fusion Hybrid and Energi plug‑in variant uses a different hybrid transaxle that requires its own specification, so please check the owner’s manual for the exact fluid grade.
Gasoline models with the 6‑speed automatic (6F35)
The majority of 2017 Fusion sedans use the 6F35 six‑speed automatic transmission. The fluid choice is important for smooth shifting and long transmission life.
- Recommended fluid: Ford Mercon LV automatic transmission fluid (ATF). OEM and aftermarket equivalents labeled Mercon LV are acceptable.
- What to avoid: Do not use fluids that are not Mercon LV, such as Dexron III/VI or Mercon V, as they may not provide proper lubrication and could harm shifting performance.
- When to change: Follow Ford’s maintenance schedule for ATF changes or consult your owner’s manual or a certified technician for service intervals specific to your driving conditions.
In short, use Mercon LV ATF for the 6F35 transmission in the 2017 Fusion’s gas models, and ensure any replacement fluid is clearly labeled Mercon LV or an approved Ford equivalent.
Hybrid and plug‑in models (Fusion Hybrid and Fusion Energi)
The Fusion Hybrid and Fusion Energi plug‑in variant employ a different transaxle system (a hybrid/ECVT setup) that uses a dedicated fluid specification separate from the gasoline 6F35 automatic. Always refer to the owner’s manual or a Ford dealer to confirm the exact fluid grade and service intervals for these models.
- Fluid type: A Ford‑specified fluid for the hybrid transaxle (not the same Mercon LV ATF used by the gasoline 6F35). Reference the manual or dealership for the precise specification.
- Service guidance: Use only fluids approved by Ford for the hybrid/transaxle system and follow the recommended maintenance intervals to avoid issues with the eCVT components.
Because the hybrid system differs from the conventional automatic, verifying the exact specification with Ford’s official guidance is essential before servicing.
How to verify the correct fluid for your car
Given variations by model and production date, the safest course is to consult the owner’s manual, check the information label inside the driver’s door jamb, or contact a Ford dealership or qualified technician. VIN-specific guidance can also ensure you’re using the correct fluid for your particular vehicle configuration.
Summary
For the 2017 Ford Fusion, gasoline models with the 6F35 automatic transmission require Mercon LV ATF (or an approved Ford-equivalent). The Fusion Hybrid and Energi use a distinct hybrid transaxle that calls for its own specified fluid, so always confirm the exact grade from the owner’s manual or a Ford dealer. Following the proper fluid specification helps maintain smooth shifting and transmission longevity.