The 2013 Lincoln MKX uses Ford’s Motorcraft Power Steering Fluid (PSF). Use PSF or an equivalent that specifically meets Ford’s PSF specification, and avoid mixing in other fluids. This ensures proper steering performance and protects the hydraulic system.
Official guidance and what to look for
Ford and Lincoln manuals for the MKX designate the hydraulic power steering system and recommend Motorcraft PSF as the fluid of choice. If Motorcraft PSF isn’t available, you may use a fluid that explicitly states it meets Ford’s PSF specification. Do not substitute with regular ATF or fluids not approved for PSF, as this can cause leaks, seal damage, or steering issues.
Approved options
Before listing options, it helps to know which fluids are acceptable for this system. Below are the typical choices owners can rely on for a 2013 MKX.
- Motorcraft Power Steering Fluid (PSF) — Ford’s official PSF product, designed for Lincoln/Mercury/Ford PS systems.
- An equivalent power steering fluid that explicitly meets Ford’s PSF specification
- Avoid: Any fluid labeled as ATF or generic hydraulic fluids not approved for PSF, as they may not be compatible with the PS seals and pump.
Using fluids that do not meet PSF specifications can compromise steering performance and may affect warranty coverage. When in doubt, consult a Lincoln dealer or a qualified mechanic.
Maintenance and topping up the reservoir
Keep the system properly filled with PSF. If you notice changes in steering effort, noise, or leaks, have the power steering system inspected. When topping up, use only Motorcraft PSF or a Ford-validated PSF and avoid mixing different brands or types of fluids.
How to check and top up (practical steps)
For owners performing basic maintenance at home, refer to the owner’s manual for the exact procedure. In general, you’ll:
- Park the vehicle on a level surface and ensure the engine is off, then locate the power steering reservoir.
- Open the cap and check the fluid level against the marked "Full" line on the reservoir.
- Top up with Motorcraft PSF (or a Ford-validated PSF) until the level reaches the full line.
If you experience repeated low-fluid alerts or visible leaks, have the system inspected by a professional to diagnose the cause and prevent potential damage.
Summary
In short, the 2013 Lincoln MKX uses Motorcraft Power Steering Fluid (PSF) or an equivalent that explicitly meets Ford’s PSF specification. Always verify compatibility with the owner’s manual or a Lincoln dealership, and avoid using ATF or non-PSF fluids. Regular checks and proper topping help maintain smooth steering and protect the hydraulic system over time.