The correct antifreeze is a Ford-approved coolant that meets Ford specification WSS-M97B44-D, typically sold as a 50/50 premixed mix.
On a 2017 Ford Transit, which may have different engines and markets (U.S., Europe, etc.), Ford designs its cooling system around a long-life ethylene glycol coolant that protects aluminum components. Always verify the exact requirement for your vehicle using the owner’s manual or a Ford dealer with your VIN, and avoid mixing coolant types. In particular, do not use Dex-Cool (GM) or other non-Ford coolants unless they are explicitly approved for Ford WSS-M97B44-D.
Ford specification and approved products
To stay within Ford’s guidelines, choose products that explicitly meet the WSS-M97B44-D specification. The most common options are Ford-approved premixed Coolant/Antifreeze formulations designed for Transit engines.
- Motorcraft Premium Engine Coolant/Antifreeze (50/50 premixed) — meets Ford WSS-M97B44-D
- Genuine Ford Extended Life Coolant (ELC) — meets Ford WSS-M97B44-D
- Any coolant explicitly labeled as compatible with Ford WSS-M97B44-D (either premixed or concentrated with correct dilution)
- Avoid coolants that do not declare Ford WSS-M97B44-D compatibility, such as Dex-Cool or universal mixes not approved for Ford
Before listing the options, note that they should carry Ford’s WSS-M97B44-D approval and be available in a premixed 50/50 solution or as a concentrated pour-for-dilution product that you mix with demineralized water to the same ratio.
In short, stick with Ford-approved products that explicitly state compliance with WSS-M97B44-D and avoid non-Ford or ambiguous coolants. If you’re unsure, your local Ford dealer or a qualified technician can verify the correct specification for your exact Transit model and market.
How to check, top up, and replace
Below are the steps for topping up or replacing coolant safely. Always work with the engine cool and use the correct Ford-approved coolant.
- Park the van on a level surface and allow the engine to cool completely. Open the radiator cap only if the system is cold.
- If topping up, use distilled water to achieve the 50/50 ratio if you are using concentrate. If you have premixed Motorcraft coolant, you can pour directly.
- Drain the cooling system if you are performing a full replacement. Catch and dispose of the old coolant according to local regulations.
- For a full replacement, flush the system with distilled water or a Ford-approved flush product, then drain again.
- Refill with the correct Ford coolant (premixed 50/50 or correctly diluted concentrate). Check that you fill to the full or recommended level on the reservoir when the system is cold.
- Start the engine and let it reach operating temperature with the heater on high to bleed air from the cooling system, checking for leaks and ensuring the level remains within range after a short drive.
Before starting, verify the exact spec in your manual or with a dealer, and ensure you have the correct premixed 50/50 coolant or the proper concentrate for dilution.
Concluding: If you’re not confident performing a coolant replacement yourself, have a professional service the cooling system to ensure the proper spec, concentration, and air bleeding are done correctly.
Frequently asked questions
Can I use any long-life coolant in a Ford Transit?
No. Ford recommends coolants that meet its WSS-M97B44-D specification. Using non-approved coolants can lead to corrosion, deposits, or cooling-system failures. Always check the packaging for Ford WSS-M97B44-D approval.
Is a 50/50 premixed coolant necessary?
A premixed 50/50 solution is convenient and reliable because it already contains the correct concentration for most Ford systems. If you use concentrate, you must mix it with demineralized water to the same 50/50 ratio recommended by Ford for your specific engine.
Summary
For a 2017 Ford Transit, use a Ford-approved antifreeze that meets WSS-M97B44-D, with a preferred 50/50 premixed formulation such as Motorcraft Premium Engine Coolant/Antifreeze or Genuine Ford Extended Life Coolant. Do not mix different coolant types, and verify the exact specification for your engine and market via the owner's manual or a Ford dealer. Properly maintaining the correct coolant ensures optimal cooling performance and protects aluminum components over time.