Look for a coolant that meets the following specifications:
* HD Diesel Formula: This is the most important. It indicates the coolant is formulated to handle the higher operating temperatures and different chemical makeup associated with diesel engines.
* Recommended by Ford: Check your owner's manual, or consult a Ford dealership for their specific recommendation, as formulations can change over time.
* Contains SCA (Supplemental Coolant Additives): These are essential for preventing corrosion and cavitation in the 6.0L's aluminum components. Many modern HD diesel coolants have these built-in, but some may require separate addition.
Do not use: Standard automotive antifreeze, green antifreeze, or anything not explicitly labeled for heavy-duty diesel engines.
Always check your owner's manual for the manufacturer's specific recommendations for your vehicle. Using the incorrect coolant can lead to expensive repairs or even engine failure.
