The Ultimate Guide to Choosing the Right Coolant Type for Your 2013 Ford Focus

By Nick Marchenko, PhD

Firstly, it's crucial to check the engine coolant concentration and level at the mileage intervals listed in the scheduled maintenance information. Remember, the level should be between the MIN and MAX marks on the engine coolant reservoir. A refractometer, like the Rotunda tool 300-ROB75240E, is recommended for testing coolant concentration. Avoid using hydrometers or coolant test strips, as Ford doesn't endorse them.

The Color of Coolant

Interestingly, normal operation can change the coolant color from orange to pink or light red. As long as it's clear and uncontaminated, this color change doesn't indicate degradation or the need for replacement.

Adding Engine Coolant

Here's a big warning: never add coolant when the engine is hot, as it can cause burns or injury. Make sure the engine is cool before opening the coolant pressure relief cap. Also, remember not to fill beyond the MAX mark.

Do's and Don'ts

• Do Not Mix Coolants: Mixing different colors or types can harm your engine's cooling system.
• In Emergencies: Only in a dire situation, you can add a large amount of water to reach a service location, but you must replace it with the correct coolant as soon as possible.
• Avoid Certain Substances: Steer clear of alcohol, methanol, brine, stop leak pellets, cooling system sealants, or additives. These can damage your engine and void the warranty.

The Right Coolant

For a 2013 Ford Focus, use Motorcraft Orange Antifreeze/Coolant Prediluted (VC-3DIL-B in the US or CVC-3DIL-B in Canada), complying with the Ford specification WSS-M97B44-D2.

Coolant Refill Procedure

1. Cap Removal: Remove the pressure relief cap from the coolant reservoir when the engine is cool.
2. Add Coolant: Slowly add prediluted coolant to the reservoir, keeping the level between MIN and MAX.
3. Cap Replacement: Reinstall the cap.
4. Engine Start: Idle the engine until the upper radiator hose warms up.
5. Engine Cooling: Turn off the engine and let it cool.
6. Repeat: Open the cap again, check and adjust the coolant level.
7. Regular Checks: Keep checking the coolant level on subsequent drives.

Shop From Amazon

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

Additional Tips

• Leak Checks: If you're adding more than 1 quart (1 liter) of coolant per month, have your vehicle checked for leaks.
• Engine Protection: Running your engine with low coolant can lead to overheating and potential engine damage.

Conclusion

As a newcomer to this field, I've found that understanding your vehicle's requirements and adhering to the manufacturer's guidelines is essential. Choosing the right coolant for your 2013 Ford Focus is more than just a maintenance task; it's about ensuring the longevity and efficiency of your car.

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.

Full profile → LinkedIn →