How often should I change the coolant on my Ford F-150?
The typical recommendation for most modern Ford F-150s is to replace the coolant every 5 years or 150,000 miles, whichever comes first. Always verify the exact interval for your year and coolant type in the owner's manual or with a Ford dealer, because there can be variation between model years and engine configurations.
This article explains the official guidance, practical considerations, and steps to assess and replace coolant safely, including what type of coolant to use and signs that your coolant needs changing.
What Ford recommends for the F-150
The following points summarize the standard guidance Ford provides for F-150s regarding coolant service. Always consult your specific model year's maintenance schedule for precision.
- Typically change coolant every 5 years or 150,000 miles, whichever comes first, for most F-150s that use long-life coolant.
- Use Ford-approved coolant that meets Ford specification WSS-M97B44-D (commonly sold as Motorcraft all-Ford/coolant or an equivalent meeting the same spec).
- If you’re converting from a different coolant type or if the system has contaminants, have the cooling system flushed and refilled with the approved coolant.
In short, stay within Ford’s recommended interval, use the correct coolant, and consider a flush if changing coolant types or if the system has contamination concerns.
Factors that can influence the interval
Several conditions can push the replacement date earlier or later than the baseline interval. Consider these when planning service for your F-150.
- Climate and operating conditions, especially extreme heat or cold, and frequent towing or heavy loads.
- Engine and cooling system condition, including radiators, hoses, water pump, thermostat, and radiator cap.
- Whether you have recently performed repairs or replaced components that could affect the cooling system.
- Mixing or contamination from using a coolant that does not meet Ford specifications or mixing different coolant chemistries.
If any of these factors apply, or if you notice overheating or a change in coolant color or odor, consult a technician to reassess the interval.
How to check and maintain coolant on your F-150
Before acting, confirm you’re using the correct product and understand the signs that indicate a change is needed. The following steps help you evaluate and maintain the cooling system.
- Check the owner’s manual for the exact interval and the coolant specification required for your model year.
- Use the correct coolant: Ford-approved long-life coolant meeting WSS-M97B44-D, in the appropriate premixed or concentrate form as directed by the manual.
- Inspect the cooling system for leaks, worn hoses, and a deteriorating radiator cap; replace components as needed.
- Inspect the reservoir level when the engine is cold and top up with the proper coolant mix if level is low.
- If you’re unsure about the coolant type or the system’s condition, have a qualified technician perform a flush and refill to avoid improper mixing or air pockets.
Always dispose of used coolant properly at a certified recycling facility and avoid mixing coolant types unless the manual explicitly allows it.
Do-it-yourself vs. professional service
Deciding whether to service the cooling system yourself or hire a pro depends on your comfort with automotive maintenance and the specifics of your F-150. The following considerations can guide your choice.
- DIY can be feasible for a straightforward drain-and-fill if you’re using the correct coolant and you follow safety precautions.
- Flushing the system and bleeding air pockets may be more complex on some engines; improper technique can lead to air locks and overheating.
- Professional service provides a comprehensive flush (when needed), correct bleeding, and confirmation of a leak-free system; it’s advisable if you’re unsure about the process.
- Expect a service cost that reflects the complexity, coolant type, and whether a full system flush is required.
Whether you do it yourself or go with a shop, ensure the job uses Ford-approved coolant and that all safety and disposal guidelines are followed.
Summary
For most Ford F-150 models, coolant should be changed every 5 years or 150,000 miles, whichever comes first, using Ford-approved coolant that meets WSS-M97B44-D. Conditions like extreme temperatures, heavy towing, and a wear-prone cooling system can shorten the interval, so always consult the owner’s manual for your exact year and engine. If in doubt, or if you notice overheating, leaks, or contamination signs, seek professional service to ensure a proper flush, refill, and bleeding of the cooling system. Proper coolant maintenance protects engine longevity and helps prevent costly failures.
