The 2017 Ford Fusion generally calls for glycol-based DOT 3 brake fluid that meets standard automotive specifications. Use DOT 3 fluid that complies with recognized standards, and avoid silicone-based DOT 5 fluids unless Ford specifies otherwise. If you prefer a higher boiling point, DOT 4 is acceptable in many cases, but verify compatibility with your vehicle and do not mix fluids improperly.
Brake fluid type and compatibility
Understanding the right fluid helps maintain stopping performance and protects the braking system’s seals and ABS components. The Fusion’s braking system is designed for glycol-based fluids, which attract moisture over time and thus require periodic replacement.
Accepted fluid options
Ford's braking system for the Fusion typically accepts glycol-based fluids in the DOT 3 or DOT 4 family, with the important caveat that the fluid must meet the correct standards and be compatible with the vehicle’s ABS. Silicone-based DOT 5 is not usually recommended for this model.
- DOT 3 brake fluid that meets SAE J1703/J1704 (glycol-based) and Ford’s specification
- DOT 4 brake fluid that meets the same standards and is compatible with the system (often chosen for a higher boiling point)
- Avoid DOT 5 silicone-based brake fluid in this vehicle, as it is not compatible with typical Ford ABS and brake-system components
Conclusion: For most owners, DOT 3 is the standard choice; DOT 4 is an acceptable alternative if you want a higher boiling point and your manual allows it. Do not use DOT 5 silicone-based fluid in this model unless Ford explicitly specifies otherwise.
Maintenance guidance: checking and replacing brake fluid
Brake-fluid maintenance is part of routine vehicle care. Fluids absorb moisture over time, which can reduce braking effectiveness and corrosion resistance. Regular checks and controlled flushing help keep the system performing as designed.
- Check the reservoir level when the engine is cool; the fluid should be near the MAX line and visible through the reservoir. Add fluid if levels are low, using the correct type.
- Inspect the fluid color and clarity. Fresh DOT 3 fluid is pale amber; dark, murky, or contaminated fluid warrants replacement.
- If performing a fluid flush, use the correct DOT 3 fluid and bleed in the proper sequence for your vehicle (typically the farthest wheel from the master cylinder first).
- Pour new fluid slowly into the reservoir, avoid spilling on paint, and keep the cap on to minimize moisture ingress.
- Have a professional complete a full brake-fluid flush if you’re unsure of the procedure or encounter difficulty bleeding the brakes or with the ABS system.
Professional service is recommended for complete brake-fluid flushing to ensure proper bleeding, ABS compatibility, and overall safety.
Summary
The 2017 Ford Fusion uses a glycol-based brake fluid, with DOT 3 as the standard specification. DOT 4 is acceptable as an alternative if needed and allowed by Ford, but DOT 5 silicone-based fluid should be avoided. Regular checks and professional maintenance for brake-fluid flushes help maintain braking performance and system longevity.
What brake fluid does a 2017 Ford Fusion use?
Note: Ford recommends using DOT 4 Low Viscosity (LV) High Performance Brake Fluid or equivalent meeting WSS-M6C65-A2. Use of any fluid other than the recommended fluid may cause degraded brake performance and not meet the Ford performance standards.
Should I use dot 3 or dot 4 brake fluid?
While DOT 3 and DOT 4 can sometimes be used interchangeably, DOT 4 is preferred for systems that generate more heat. How often should I replace my brake fluid? Brake fluid should be replaced every two to three years, or more frequently if exposed to high heat or moisture.
Do Ford Fusions shift hard?
It is a good idea to keep an eye and ear on the way your car sounds when you are accelerating, as the RPMs should never get so high that they are noticeable. Ford Fusion transmissions are also known for hard shifting issues.
What's the typical lifespan of a fusion?
between 200,000 and 250,000 miles
The short answer is that a well-maintained Ford Fusion can last between 200,000 and 250,000 miles. Some Ford Fusion owners have even reported higher mileage with proper regular maintenance.