The Ultimate Guide to Choosing the Right Coolant Type for Your 2018 F150 3.5 Ecoboost Engine

By Nick Marchenko, PhD

If you're like me, you love your 2018 F150 3.5 Ecoboost. It’s not just a truck; it's a companion on the road. And just like taking care of a good friend, you want to make sure you’re giving your F150 the best, especially when it comes to something as crucial as the engine coolant. After diving deep into the service guide, I’ve gathered some insights to help you choose the right coolant and maintain your truck’s health.

Understanding Your F150’s Coolant Needs

The 2018 F150 3.5 Ecoboost requires a specific type of engine coolant to function optimally. According to the service guide, the truck has a coolant capacity of 13.1 quarts (12.4 L). But it's not just about the quantity; the quality and type of coolant are vital.

The Right Coolant Type

For the 2018 F150 3.5 Ecoboost, the recommended coolant is the Motorcraft Orange Antifreeze/Coolant Prediluted, with specifications VC-3DIL-B in the U.S., CVC-3DIL-B in Canada, and VC-3DIL-B in Mexico. This coolant conforms to the WSS-M97B44-D2 standard. Why is this specific type important? Well, using the wrong coolant can lead to various issues like corrosion, overheating, and inefficiency.

Consequences of Incorrect Coolant Use

Ignoring these specifications can lead to serious problems. The wrong coolant type can cause component damage (not covered by the vehicle warranty), reduced engine performance, increased emissions, and even degraded fuel economy. In short, the wrong choice can be costly and harmful to your truck.

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Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA

Zerex G05 Phosphate Free 50/50 Prediluted Ready-to-Use Antifreeze/Coolant 1 GA

Why Motorcraft Coolant?

Motorcraft coolants are specifically designed to meet the rigorous standards set by Ford for its vehicles. They provide the right balance of corrosion protection, boiling and freezing point management, and are chemically compatible with the truck’s engine components. Remember, using aftermarket products that don't meet these specifications can lead to those unwanted consequences I mentioned earlier.

Additional Tips for Coolant Maintenance

• Regular Checks: Regularly check the coolant level and keep it between the MIN/MAX marks on the reservoir.
• Avoid Mixing Coolants: Mixing different types of coolants can lead to chemical reactions that may degrade the cooling system’s performance.
• Routine Changes: Change the coolant as per the recommended schedule in the service guide. Over time, coolant loses its effectiveness.
• Professional Assistance: If you're not comfortable checking or changing the coolant yourself, it’s always best to seek help from qualified personnel, especially since handling coolants requires care and proper disposal.

Handling Extreme Climates

If you live in a region with extremely cold temperatures (below -22.0 °F or -30.0 °C), consider switching to Motorcraft SAE 0W-30 Premium Synthetic Blend Motor Oil (XO-0W30-QSP). This oil is designed to improve engine cold start performance in harsh climates.

In Conclusion

Choosing the right coolant for your 2018 F150 3.5 Ecoboost is not just a matter of maintenance; it’s about ensuring the longevity and efficiency of your beloved truck. Stick to the Motorcraft Orange Antifreeze/Coolant Prediluted for optimal performance. Remember, the health of your truck’s engine lies in the details - the right type, the right amount, and the right maintenance schedule.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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