2018 Ford Transit Coolant Capacity & Type

The 2018 Ford Transit's cooling system holds approximately 13.9 to 15.6 quarts (13.2 to 14.8 liters) of coolant, though this can vary slightly by engine. Maintaining the correct coolant type and level is crucial for the longevity and performance of your Transit.

Quick Answer

• Total Cooling System Capacity: 13.9 - 15.6 quarts (13.2 - 14.8 liters)
• OEM Coolant Spec: Ford Orange Prediluted Antifreeze/Coolant, meeting Ford Specification WSS-M97B44-D. This is an Organic Acid Technology (OAT) coolant.
• Mix Ratio: 50/50 prediluted, or mix 50% concentrate with 50% distilled water.

Capacity by Engine Option

The 2018 Ford Transit was available with several engine options, and each may have a slightly different cooling system capacity:

Always consult your owner's manual for the most accurate and up-to-date information specific to your vehicle's configuration.

Flush Interval

Ford recommends the following coolant flush intervals for the 2018 Transit:

• Normal Duty: Every 10 years or 200,000 miles, whichever comes first.
• Severe Duty: If your vehicle is used for towing, heavy hauling, or in extremely hot or cold climates, it is wise to consider flushing the coolant more frequently, possibly every 5 years or 100,000 miles.

Regular coolant flushes help prevent corrosion, maintain heat transfer efficiency, and extend cooling system component life.

How to Refill & Bleed

Properly refilling and bleeding the cooling system after a drain or component replacement is essential to prevent air pockets, which can lead to overheating. Here's a general procedure:

1. Safety First: Ensure the engine is cool before starting. Wear appropriate personal protective equipment.
2. Drain Coolant: Place a drain pan under the radiator drain plug and open it. If no plug, the lower radiator hose can be disconnected. Allow plenty of time for all coolant to drain.
3. Flush (Optional): If performing a full flush, close the drain, fill with distilled water, run the engine to operating temperature with the heater on, then drain again. Repeat until the drained water is clear. Use a quality cooling system flush chemical according to product directions.
4. Close Drain: Reinstall the radiator drain plug or reattach the lower radiator hose securely.
5. Refill: Slowly fill the coolant reservoir to the