Blue. Honda's current Genuine Antifreeze/Coolant Type 2 is blue, and it is the standard color used in most modern Honda and Acura vehicles.
Color can vary by market or model year, and some older or non-Honda products use other hues such as green or red. Always verify the correct formulation by checking the owner's manual or the coolant bottle label, and never mix different types of coolant or colors in the same system.
Color coding and Honda coolant types
To help readers understand what the color means, here are the typical color associations you may encounter when servicing a Honda vehicle.
- Blue: Honda Genuine Antifreeze/Coolant Type 2 (the current long-life coolant used in most modern Honda/Acura models).
- Green: Older Honda coolant types or non-Honda brands; less common in current models but may be found in legacy vehicles.
- Orange/Red: Dex-Cool or other brand formulations; not recommended for Honda unless specifically stated by Honda and the vehicle's manual.
Always rely on the label and the owner's manual to determine the correct coolant for your specific model and production year.
How to confirm the right coolant for your Honda
Locate the label on the coolant bottle or consult the owner's manual for the exact specification (often listed as Type 2 for modern Hondas). If you don't have access to the manual, contact a Honda dealer or service center. Do not mix coolant types or colors, and avoid making changes to the cooling system if you are unsure.
Summary
For modern Honda and Acura vehicles, blue is the color to look for in coolant, corresponding to Honda's Type 2 long-life antifreeze. Always verify the exact specification on the label or in the manual and avoid mixing different coolant types or colors. When in doubt, seek professional advice.