Most Ford Fusion models require Motorcraft coolant that meets Ford specification WSS-M97B44-D, typically supplied as a 50/50 premixed extended-life orange coolant. Always confirm the exact requirement for your year and engine in the owner's manual or by checking with a Ford dealer.
The precise coolant type can vary by model year and engine, with newer Fusion models commonly using an orange long-life coolant formulated for organic-acid technology (OAT), while some older or European-spec variants may have used a conventional green coolant. Do not mix coolant types or brands unless your manual explicitly allows it. When topping up or replacing, start with the OEM-approved Motorcraft option that matches Ford’s specification and use distilled water if you’re diluting a concentrate.
Choosing the right coolant
Below are the coolant options Ford Fusion owners typically encounter. The goal is to use only coolants that meet Ford’s specification to prevent corrosion, overheating, or cooling-system leaks. The exact specification and compatibility depend on the specific model year and engine.
- Motorcraft Premium Engine Coolant/Antifreeze 50/50 Premixed (Orange) — designed to meet Ford specification WSS-M97B44-D; suitable for most 2010s Fusion models.
- Motorcraft Premium Engine Coolant Concentrate (Orange) — to be diluted with distilled water to 50/50; when mixed properly, it should meet Ford specification WSS-M97B44-D.
- Older or European-spec Fusion vehicles may have used conventional green coolant that meets earlier Ford guidelines; always verify the exact specification for your car before topping up.
Concluding guidance: Use only the OEM-approved Motorcraft coolant that matches Ford’s current specification for your Fusion’s year and engine. Mixing different coolant types or brands can compromise cooling performance and engine protection. If you’re unsure, consult your Ford dealer or a qualified mechanic.
Maintenance and replacement tips
To keep the cooling system in good shape, follow these best practices and steps when replacing or topping up coolant.
- Check the owner’s manual or under-hood label for the exact Ford specification and color guidance before purchasing coolant.
- Use Motorcraft coolant that meets WSS-M97B44-D (or the specified Ford equivalent) and opt for the 50/50 premixed formulation when possible.
- Do not mix different coolant types, colors, or brands unless the manual explicitly allows it; if you must mix concentrate, ensure it is the correct concentrate and dilute with distilled water to the recommended ratio.
- When topping up, fill the reservoir to the “Full” (or “Max”) line with engine cold; run the engine to operating temperature to bleed air, then re-check levels once cooled.
- Dispose of old coolant responsibly at a recycling facility or a shop that accepts hazardous fluids.
Note: If you’re not comfortable performing coolant maintenance yourself, have the work done by a trained technician to ensure proper bleeding and level accuracy.
Summary
In short, a Ford Fusion typically needs Motorcraft coolant that meets Ford specification WSS-M97B44-D, most often the 50/50 premixed orange extended-life formula. Verify the exact requirement for your model year and engine in the owner’s manual or with a Ford dealer, and avoid mixing different coolant types. Regular checks and proper disposal of old coolant help maintain optimal cooling performance and engine protection.