Yes—Ford's older hydraulic power steering systems used automatic transmission fluid (ATF). In most modern Ford vehicles, power steering is electric and does not use ATF.
This article explains how Ford’s power steering has evolved, how to determine which system your vehicle has, and what fluid or maintenance applies if your model still uses hydraulic assistance.
Overview of Ford power steering systems
Ford has shifted from hydraulic (fluid-based) power steering to electric power steering (EPAS) across most of its lineup. The change affects whether ATF is involved in the steering system. The exact setup depends on your model and year, so always verify with the owner's manual or a dealer for your vehicle.
Hydraulic power steering: historical context
In older Ford models with hydraulic power steering, the system relies on hydraulic fluid to provide assist. The fluid used is typically ATF rather than a dedicated steering fluid. If your vehicle has a power steering reservoir labeled “Power Steering Fluid” and a network of hoses, it is likely hydraulic.
In older Ford models with hydraulic PS, the fluid used is ATF. The exact specification varied by model and year, so consult the owner's manual or a Ford service bulletin to confirm the right ATF type for your vehicle.
- Common in many Ford cars and trucks built before the widespread adoption of electric power steering (roughly pre-2010s, with variations by model and market).
- Fluid specifications historically aligned with ATF types in use at the time (Dexron- or Mercon-family fluids, though exact requirements varied).
- Maintenance considerations included avoiding mixing fluids and performing proper flushes according to the vehicle’s service schedule.
Conclusion: For vehicles with hydraulic PS, ATF is the expected steering-fluid. Always verify the exact specification for your model and year in the manual or with a dealer.
Electric power steering: modern Ford vehicles
Most newer Ford vehicles use electric power steering (EPAS). These systems are driven by an electric motor and do not require ATF in the steering circuit. There is typically no dedicated power-steering fluid reservoir to service in these vehicles.
In EPAS-equipped vehicles, there is no ATF in the steering system, and service focuses on the electronic components, sensors, and motor operation rather than hydraulic fluid.
- Nearly all Ford passenger cars, SUVs, and light trucks produced in the mid-2010s onward use EPAS as the default steering architecture.
- Some rare or specialized configurations may still use a hydraulic assist stage (EHPS) in specific markets or models, but these are exceptions rather than the norm for current Ford lineups.
- Maintenance checks for EPAS focus on electronics, wiring, and the motor/sensor assemblies rather than ATF or a steering-fluid reservoir.
Conclusion: In the vast majority of current Ford models, ATF is not used in the steering system; if your vehicle is EPAS, ATF should not be part of routine steering maintenance. Always confirm with the manual for your exact model and year.
Summary
Ford’s reliance on ATF for power steering has largely declined as the industry moved toward electric power steering. Hydraulic PS systems from older Ford vehicles used ATF, while the modern Ford lineup predominantly uses EPAS, which eliminates ATF from the steering circuit. Always check the owner’s manual or contact a Ford dealer to confirm the correct fluid or service approach for your specific model and year.
What type of ATF does Ford use?
Mercon represents a series of technical standards for automatic transmission fluid, developed and trademarked by Ford Motor Company. This designation serves as a mark of quality that Ford has established for fluids used in automatic transmissions.
Does Ford use ATF for power steering fluid?
Here. Pull the dipst stick out you can see how the fluid is red this is automatic transmission fluid. Says check with oil. Hot. Says use approved Ford fluid which in this case is ATF.
What kind of power steering fluid does a 2010 Ford f150 4.6 take?
Mercon V; 12 Oz.
What happens if you put power steering fluid in instead of ATF?
Power steering fluid and ATF are the same thing. The OEM fluid may contain additives that make it more tailored to the use case, but it's all just hydraulic fluid. I would replace it anyway just to be sure all the fluid properties are exactly as designed, but using the universal stuff is not likely to damage anything.