Quick answer
Honda coolant: Honda owner's manuals specify Honda Long Life Antifreeze/Coolant Type 2, a 50/50 premix (the gallon part is OL999-9011 per a Honda dealer). Honda allows a non-silicate coolant only as a temporary replacement.
Key takeaways
- Honda coolant facts here are quoted from cited Honda documents or labelled as coolant-maker claims.
- 3 products list a Honda-family spec code. 3 more name Honda in their application text (guidance only).
- Your owner's manual decides. Specs vary by model, engine, market and year.
- Do not choose by colour.
- Independent; not affiliated with Honda.
What coolant does Honda use?
Honda coolant: Honda owner's manuals specify Honda Long Life Antifreeze/Coolant Type 2, a 50/50 premix (the gallon part is OL999-9011 per a Honda dealer). Honda allows a non-silicate coolant only as a temporary replacement.
- The 2025 Accord owner's manual states: "Specified coolant: Honda Long Life Antifreeze/Coolant Type 2". It is "premixed with 50% antifreeze and 50% water. Do not add any straight antifreeze or water." [1]
- Honda says genuine coolant withstands freezing to about -31 °F (-35 °C). [1]
- If Honda coolant is not available, the manual allows "another major brand of non-silicate coolant as a temporary replacement", followed by a flush and refill with Honda coolant "as soon as possible". [1]
- A Honda dealer parts site lists the gallon part as OL999-9011, superseding CU08730, OL9999001, OL9999002 and OL9999012. [2]
Numbers in brackets refer to the sources at the end of this page. Lines without a number summarise coolant makers' literature rather than an Honda document.
Genuine Honda coolant in our directory
These are coolants sold by the vehicle maker or its parts brand. Each product page shows exactly what the source publishes, with "not published" where it is silent.
| Product | Brand | Chemistry | Colour | Form | Why it is listed |
|---|---|---|---|---|---|
| Honda Long Life Antifreeze/Coolant Type 2 | Honda | not published | not published | Premix 50/50 | Genuine / OE parts brand |
Honda spec codes listed by coolant makers
These Honda-family codes appear in the manufacturer data of the 3 products in our directory that list them. A code here means at least one coolant maker states its product meets it. Your manual tells you which code, if any, applies to your vehicle.
| Spec code | Products whose maker lists it |
|---|---|
| Honda Type 2 | 3 |
Coolants that list a Honda spec (per their manufacturer)
Each row reads "meets [code] per [brand]". The wording ("approved", "meets or exceeds", "recommended") is quoted on the product page. Open it before you buy.
| Product | Brand | Chemistry | Colour | Form | Why it is listed |
|---|---|---|---|---|---|
| Honda Long Life Antifreeze/Coolant Type 2 | Honda | not published | not published | Premix 50/50 | Lists Honda Type 2 |
| Prestone MAX All Vehicles Antifreeze + Coolant | Prestone | not published | Yellow | not published | Lists Honda Type 2 |
| Prestone Platinum All Vehicles Antifreeze + Coolant | Prestone | not published | not published | Concentrate and Premix 50/50 | Lists Honda Type 2 |
Coolants whose maker names Honda (guidance only)
These products do not list a Honda spec code, but their manufacturer's application text names Honda (for example "recommended for Toyota, Honda, Nissan…"). That is a weaker claim than a spec code. Treat it as guidance, check the exact wording, and follow your manual.
| Product | Brand | Chemistry | Colour | Form | Why it is listed |
|---|---|---|---|---|---|
| Prestone MAX Asian Vehicles (Blue) Antifreeze + Coolant | Prestone | not published | Blue | not published | Maker names Honda in its text |
| OEM Extended Life BLUE I Antifreeze/Coolant | Recochem | not published | Blue | Concentrate and Premix 50/50 | Maker names Honda in its text |
| Zerex Asian Vehicle Blue Antifreeze Coolant | Zerex | HOAT | Blue | not published | Maker names Honda in its text |
Not sure which coolant your car takes?
Find your coolant →Colour and chemistry
Among the 7 products on this page, the listed colours are Blue (3), Yellow (1), and the listed chemistries are HOAT (1). Colour is a dye chosen by each maker, so two coolants of the same colour can be chemically different, and the same chemistry can come in different colours. Match the spec or the named factory coolant, not the colour. See coolant colours explained and OAT vs HOAT vs IAT.
Topping up and mixing
If the reservoir is low, top up only with the coolant your manual specifies, and use the same premix or concentrate ratio. Mixing chemistries can reduce corrosion protection and shorten coolant life. Some makers (Mopar, Mercedes-Benz) explicitly say not to mix specs. If an unknown coolant has been added, a flush and refill is safer than topping up. Use the mixing checker and our coolant flush guide. Never open a hot radiator or reservoir cap.
Varies by model and year
Honda has changed coolant specs over the years, and a spec can differ by engine and market (for example North America vs Europe). Electric and hybrid models may use separate loops with their own fluids. This page does not tell you which code applies to your vehicle. Your owner's manual, the reservoir cap label or a dealer does.
When to see a mechanic
See a dealer or qualified mechanic if the coolant looks rusty, oily or sludgy, if the engine overheats or the coolant warning light comes on, or if you cannot identify the correct spec. See coolant warning light and coolant leaks.
Frequently asked questions
What coolant does Honda use?
Honda coolant: Honda owner's manuals specify Honda Long Life Antifreeze/Coolant Type 2, a 50/50 premix (the gallon part is OL999-9011 per a Honda dealer). Honda allows a non-silicate coolant only as a temporary replacement.
Which coolants meet Honda specs?
3 products in our directory list a Honda-family spec code, including Prestone MAX All Vehicles Antifreeze + Coolant, Prestone Platinum All Vehicles Antifreeze + Coolant, Honda Long Life Antifreeze/Coolant Type 2. Each product page quotes the maker's wording.
Can I use a universal coolant in my Honda?
Only if your owner's manual allows it, or if the product's maker states it meets the exact spec your manual names. "Universal" or "all makes" wording is not the same as a listed Honda spec.
What colour is Honda coolant?
Colour varies by product and era and is not a spec. Products on this page are listed as Yellow, Blue. Match the spec or named coolant instead.
Is Coolant.com affiliated with Honda?
No. Coolant.com is independent and not affiliated with or endorsed by Honda. We use the name only to say which vehicles a spec relates to.
New to cooling systems? Start with how a car cooling system works. Looking for a product? Search the coolant directory or match your manual's spec with Find my car coolant. See also coolant by car make and coolants by brand.