Quick answer
Kia coolant: genuine Kia Long Life Coolant is a silicate- and borate-free ethylene-glycol pre-mix per Hyundai Mobis. Aftermarket makers cite the shared Hyundai/Kia spec MS591-08. Check your Kia owner's manual for your model.
Key takeaways
- Kia coolant facts here are quoted from cited Kia documents or labelled as coolant-maker claims.
- 4 products list a Kia-family spec code. 3 more name Kia 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 Kia.
What coolant does Kia use?
Kia coolant: genuine Kia Long Life Coolant is a silicate- and borate-free ethylene-glycol pre-mix per Hyundai Mobis. Aftermarket makers cite the shared Hyundai/Kia spec MS591-08. Check your Kia owner's manual for your model.
- Hyundai Mobis describes Genuine Kia Long Life Coolant Pre-mixed (ACF79IKE04) as "designed and approved by Kia engineers" and free of silicates and borates. It lists the contents as 45–55% ethylene glycol and 45–50% water, with sebacic acid and potassium hydroxide. [1]
- Kia shares the MS591-08 coolant spec code with Hyundai in coolant makers' literature. (coolant-maker literature / general context, not an OEM document)
Numbers in brackets refer to the sources at the end of this page. Lines without a number summarise coolant makers' literature rather than an Kia document.
Genuine Kia 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 |
|---|---|---|---|---|---|
| Kia Long Life Engine Coolant (Pre-mixed) | Kia | not published | not published | Premix (ready to use) | Genuine / OE parts brand |
Kia spec codes listed by coolant makers
These Kia-family codes appear in the manufacturer data of the 4 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 |
|---|---|
| Hyundai/Kia MS591-08 | 4 |
Coolants that list a Kia 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 |
|---|---|---|---|---|---|
| Prestone MAX All Vehicles Antifreeze + Coolant | Prestone | not published | Yellow | not published | Lists Hyundai/Kia MS591-08 |
| Prestone Platinum All Vehicles Antifreeze + Coolant | Prestone | not published | not published | Concentrate and Premix 50/50 | Lists Hyundai/Kia MS591-08 |
| Zerex Asian Vehicle Blue Antifreeze Coolant | Zerex | HOAT | Blue | not published | Lists Hyundai/Kia MS591-08 |
| Zerex Asian Vehicle Red Antifreeze Coolant | Zerex | HOAT | Red/Pink | not published | Lists Hyundai/Kia MS591-08 |
Coolants whose maker names Kia (guidance only)
These products do not list a Kia spec code, but their manufacturer's application text names Kia (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 |
|---|---|---|---|---|---|
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for Asian Vehicles - RED/PINK | PEAK | P-OAT | Pink/Red | Premix 50/50 | Maker names Kia in its text |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for Asian Vehicles - RED/PINK | PEAK | P-OAT | Pink/Red | Concentrate | Maker names Kia in its text |
| Prestone MAX Asian Vehicles (Green) Antifreeze + Coolant | Prestone | not published | Green | not published | Maker names Kia in its text |
Not sure which coolant your car takes?
Find your coolant →Colour and chemistry
Among the 8 products on this page, the listed colours are Pink/Red (2), Yellow (1), Blue (1), Red/Pink (1), Green (1), and the listed chemistries are HOAT (2), P-OAT (2). 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
Kia 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 Kia use?
Kia coolant: genuine Kia Long Life Coolant is a silicate- and borate-free ethylene-glycol pre-mix per Hyundai Mobis. Aftermarket makers cite the shared Hyundai/Kia spec MS591-08. Check your Kia owner's manual for your model.
Which coolants meet Kia specs?
4 products in our directory list a Kia-family spec code, including Prestone MAX All Vehicles Antifreeze + Coolant, Prestone Platinum All Vehicles Antifreeze + Coolant, Zerex Asian Vehicle Blue Antifreeze Coolant, Zerex Asian Vehicle Red Antifreeze Coolant. Each product page quotes the maker's wording.
Can I use a universal coolant in my Kia?
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 Kia spec.
What colour is Kia coolant?
Colour varies by product and era and is not a spec. Products on this page are listed as Yellow, Blue, Red/Pink, Green, Pink/Red. Match the spec or named coolant instead.
Is Coolant.com affiliated with Kia?
No. Coolant.com is independent and not affiliated with or endorsed by Kia. 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.