The correct coolant for a Ford Fusion is Ford-approved motor coolant, typically a premixed 50/50 formulation that meets Ford specifications. Always verify the exact requirement in your owner's manual or on the coolant bottle label for your model year and engine.
Understanding the Fusion's coolant needs
Ford Fusion models span multiple generations and engine options, and coolant formulations can vary by year. The safest approach is to use an OEM-approved coolant that explicitly meets Ford’s specifications and to avoid mixing different types or colors unless the label confirms compatibility. When in doubt, start with a Motorcraft product designed for Ford vehicles and premixed for convenience.
Recommended coolant options for the Fusion
Before you choose, keep in mind that you should only use coolant that explicitly meets Ford’s specification and is compatible with your engine. The list below covers common, Ford-approved options that are typically suitable when matched to your model year and engine.
- Motorcraft Premium Engine Coolant (premixed 50/50) that meets Ford specification WSS-M97B44-D. This is the OEM option Ford commonly recommends for many modern Fusions; the bottle will indicate it is premixed and ready to use.
- Ford-approved long-life coolant that is labeled to meet Ford specifications (often Dex-Cool-based orange/orange-red formulations). Ensure the product explicitly states compatibility with Ford WSS-M97B44-D or the current Ford spec for your year/model.
- Conventional or “green” coolant only if it explicitly states compatibility with Ford’s older specifications applicable to your Fusion’s production year. Verify the exact spec in your manual or on the product label, and avoid mixing with long-life orange/coral formulations.
When selecting coolant, the key is to confirm the exact Ford specification for your particular Fusion and to purchase a product that clearly lists that specification on the label. Do not mix different coolant types or colors in the cooling system unless the product documentation confirms compatibility.
How to check, top off, or replace coolant
Below are practical steps for checking levels, topping off, or performing a full coolant replacement. If you’re not comfortable with DIY maintenance, consult a qualified mechanic.
- Ensure the engine is completely cool before opening the radiator cap or reservoir cap to avoid pressurized hot coolant exposure.
- Locate the coolant reservoir and check the level against the markings (typically "MIN" and "MAX").
- If topping off, use the Ford-approved coolant in a premixed 50/50 formulation. Do not mix with a different coolant type unless the label confirms compatibility.
- For a full flush and replacement, drain the cooling system through the radiator drain petcock, then flush with distilled water until the draining liquid runs clear.
- Refill with the approved premixed coolant to the correct level, and if applicable bleed any air from the system as per the service manual.
- run the engine with the radiator cap off briefly to help expel air, then replace the cap and check for leaks and proper temperature gauge operation.
- Dispose of old coolant properly at a recycling facility or automotive shop; never pour it down the drain or onto the ground.
Note: If you’re unsure about the process or the exact coolant specification for your Fusion’s year and engine, consult the owner’s manual or a Ford dealership service department. Using the wrong coolant or improper mixing can lead to cooling system damage and warranty issues.
Summary
In short, protect your Ford Fusion by using an OEM Ford-approved coolant, ideally a premixed 50/50 formulation that meets the appropriate Ford specification (such as WSS-M97B44-D or its current equivalent). Always verify the exact requirement for your year and engine, avoid mixing different coolant types, and consult a professional if you’re uncertain about the replacement process. Proper coolant selection and maintenance help prevent overheating, corrosion, and costly repairs down the line.