What coolant does a 2018 Dodge Durango take?
The 2018 Durango uses a long-life HOAT antifreeze/coolant that is Mopar-approved, typically sold as a 50/50 premixed formulation in orange. In practice, you should use Mopar's Genuine Antifreeze/Coolant or an equivalent Chrysler/Jeep/Dodge-approved HOAT coolant that matches the same specification.
Official guidance and compatibility
The Durango's cooling system is designed for HOAT/Organic Acid Technology coolants. The factory-recommended option is Mopar Long-Life Antifreeze/Coolant in a 50/50 premixed bottle. Other brands that explicitly state compatibility with Chrysler/Jeep/Dodge HOAT long-life coolant and are premixed 50/50 can be used, but mixing different chemistries should be avoided. Always verify the exact specification in your owner's manual or on the coolant reservoir cap.
Color and compatibility
Most 2011–present Dodge/Chrysler/Jeep models use orange-colored HOAT/OAT long-life coolant; the color helps identify the type and green coolant is not recommended. Do not mix different types or brands unless explicitly stated as compatible by the manufacturer.
Approved coolant options
Before listing, here is a concise guide to what to look for when buying coolant for your Durango.
- Mopar Genuine Antifreeze/Coolant 50/50 Premixed (orange): the official option for Chrysler/Jeep/Dodge vehicles, including the 2018 Durango.
- A high-quality HOAT long-life coolant labeled as compatible with Chrysler/Jeep/Dodge vehicles and sold in premixed 50/50 orange formulation: ensure it meets the same spec as Mopar's.
When using alternative brands, ensure the product explicitly states compatibility with Chrysler/Jeep/Dodge HOAT long-life coolant and is premixed 50/50. Do not use green or universal coolants unless the manual confirms compatibility.
Maintenance tips
- Use the correct ratio: 50% coolant to 50% distilled water if buying concentrate; use premixed 50/50 to avoid errors.
- Always use a coolant labeled as compatible with Chrysler/Jeep/Dodge vehicles.
- Bleed and fill properly to avoid air pockets and overheating.
Sticking to these guidelines helps preserve the Durango’s cooling system and prevents common issues related to incorrect coolant chemistry.
Where to buy and how to refill
To ensure you’re using the right product, purchase from reputable sources—Mopar dealerships, authorized retailers, or automotive parts stores that clearly label compatibility with Chrysler/Jeep/Dodge vehicles and provide 50/50 premixed coolant. When refilling after a drain, follow the bleeding procedure in the owner’s manual to remove air pockets and verify the system is holding the proper temperature range.
If you are unsure about the exact spec for your vehicle, consult the owner’s manual, contact a Dodge dealer, or check the radiator cap label for the approved coolant specification.
Summary
The 2018 Durango requires a long-life HOAT coolant that is Mopar-approved, typically orange and sold as 50/50 premixed. Use Mopar's own coolant or another Chrysler/Jeep/Dodge-approved HOAT coolant; avoid mixing with green or non-approved formulas. Regular maintenance and proper refilling help ensure the cooling system stays reliable.
