Use Motorcraft Power Steering Fluid — a Dexron VI/Mercon LV-compatible hydraulic power steering fluid designed for Ford vehicles like the 2010 Flex.
The 2010 Ford Flex relies on a hydraulic power steering system. To keep steering smooth and free of noise, Ford recommends a fluid that is compatible with Dexron VI and Mercon LV automatic transmission fluids and tailored for Ford steering systems. Always verify the exact specification for your VIN in the owner’s manual or by contacting a Ford dealer, and avoid mixing fluids unless the system has been flushed.
Fluid compatibility and official recommendations
Below are the fluid options commonly deemed acceptable for the 2010 Ford Flex. Use only fluids that meet Ford’s specification or are explicitly recommended by Ford Motorcraft.
- Motorcraft Power Steering Fluid — Ford’s official fluid, formulated for hydraulic steering systems and typically labeled Dexron VI/Mercon LV compatible.
- Dexron VI- or Mercon LV-compatible power steering fluids from reputable brands — ensure the label confirms compatibility with Ford power steering systems.
- Universal power steering fluids that explicitly state compatibility with Ford power steering and are Dexron VI or Mercon LV compatible.
When in doubt, confirm with a Ford dealer or consult the owner’s manual for the exact specification and avoid mixing fluids unless the system has been flushed.
Maintenance tips: topping up and flushing
Keeping the level correct and using the right fluid type are key to preventing steering noise and effort. The following guidelines help ensure proper maintenance.
- Check the reservoir cap for the correct fluid specification before opening the cap.
- Use a clean funnel and work with the engine off and the fluid cold to avoid spills.
- If the level is below the minimum line, top up with the recommended fluid until it sits between the min and max marks.
- If you notice persistent noise, whining, or stiffness, have the system inspected for leaks or air that may require bleeding or professional service.
Note: Some late-model Ford vehicles use electric power steering, which does not require hydraulic fluid. The 2010 Flex is generally hydraulic, but always confirm via the owner’s manual or a trusted technician if you’re unsure about your specific build.
Is there a quick checklist for the reservoir?
Yes. Before performing any checks or top-ups, confirm the fluid specification on the reservoir cap and ensure you’re using the correct fluid. Keep the area clean to prevent contamination.
In practice, sticking to Ford’s Motorcraft Power Steering Fluid or a Dexron VI/Mercon LV-compatible product is a reliable choice for the 2010 Ford Flex, with caution to avoid mixing fluids and to consult dealership guidance for VIN-specific requirements.
Summary
For a 2010 Ford Flex, the recommended fluid is Motorcraft Power Steering Fluid, a Dexron VI/Mercon LV-compatible hydraulic fluid designed for Ford steering systems. Verify with the owner’s manual or a Ford dealer for your exact VIN, and follow proper top-up and flushing procedures to maintain optimal steering performance.