Quick answer
Coolant brands in our directory: 25 brands and 137 products, each linked to the maker's own source. Open a brand to see its products, the chemistries it names and the spec codes it lists. The right coolant is the one that meets the spec in your owner's manual, whatever the brand.
Key takeaways
- 25 brands, from aftermarket coolant makers to vehicle makers' genuine coolants.
- Facts only from manufacturer pages and data sheets.
- No ratings, prices or rankings. Brands are sorted by number of products listed.
- Independent: not affiliated with or endorsed by any brand listed.
- Search by spec code with Find my car coolant.
All coolant brands
| Brand | Maker / seller | Products | Chemistries named | Products listing spec codes |
|---|---|---|---|---|
| PEAK coolant | Old World Industries | 36 | HOAT, IAT, OAT, P-OAT, Si-OAT | 28 |
| Recochem coolant | Recochem | 32 | HOAT, IAT, OAT, P-OAT | 20 |
| Prestone coolant | Prestone | 22 | IAT, OAT | 5 |
| ACDelco coolant | General Motors (ACDelco) | 7 | HOAT, OAT, P-Si-OAT, Si-OAT | 1 |
| Comma coolant | Comma | 7 | IAT, OAT, Si-OAT | 7 |
| Zerex coolant | Valvoline Global Operations | 7 | HOAT, IAT, OAT | 7 |
| Castrol coolant | Castrol | 5 | IAT, OAT, Si-OAT | 3 |
| Shell coolant | Shell (Shell Lubricants) | 3 | Si-OAT | 2 |
| Mopar coolant | Stellantis (Mopar) | 2 | OAT | 2 |
| Arteco coolant | Arteco | 1 | OAT | 0 |
| BASF coolant | BASF | 1 | not published | 0 |
| Fleetguard coolant | Cummins Filtration (Fleetguard) | 1 | OAT | 0 |
| Honda coolant | American Honda Motor Co. | 1 | not published | 1 |
| Hyundai coolant | Hyundai Mobis | 1 | not published | 0 |
| Kia coolant | Hyundai Mobis | 1 | not published | 0 |
| Mazda coolant | Mazda | 1 | not published | 1 |
| Mobil coolant | ExxonMobil | 1 | Si-OAT | 1 |
| Motorcraft coolant | Ford Motor Company | 1 | not published | 1 |
| Nissan coolant | Nissan North America | 1 | not published | 1 |
| Subaru coolant | Subaru of America | 1 | not published | 0 |
| Tesla coolant | Tesla | 1 | not published | 1 |
| Toyota coolant | Toyota Motor Corporation | 1 | not published | 0 |
| Valvoline coolant | Valvoline Global Operations | 1 | not published | 1 |
| Volkswagen coolant | Volkswagen Group | 1 | not published | 1 |
| febi coolant | Ferdinand Bilstein GmbH + Co. KG | 1 | Si-OAT | 1 |
Aftermarket vs genuine coolants
Aftermarket brands such as Prestone, PEAK, Zerex, Recochem, Comma, Castrol, Shell, Mobil and febi sell coolants that list many spec codes at once. Vehicle makers (Toyota, Honda, Nissan, Mazda, Hyundai, Kia, Subaru, Volkswagen, Tesla, and Motorcraft for Ford, ACDelco for GM and Mopar for Stellantis) sell their own genuine coolant. Their parts pages often give only a part number, because the owner's manual names the coolant directly. See coolant by car make for what each vehicle maker publishes.
How to read a brand page
Each brand page shows the products we list, the chemistries the maker names, the spec codes it lists and how many products list each code, and the fields it leaves unpublished. Approvals are always framed as "meets X per [brand]", with the manufacturer's wording quoted on the product page. A brand with more products is not a better brand. It means we found more product pages with usable data.
Not sure which coolant your car takes?
Find your coolant →Coverage and gaps
We collected these products on 22 October 2026. Some brands publish product data only in JavaScript apps or block automated access. For Zerex and Valvoline we used Valvoline product information sheets instead, and each product page names its source. BMW, Mercedes-Benz and Volvo genuine coolants are not listed yet, because we could not find a manufacturer page with product data we could cite. Download the full dataset as CSV or JSON.
When to see a mechanic
If you cannot find your manual's spec on any product, ask a dealer or qualified mechanic rather than choosing by brand or colour.
Frequently asked questions
Which coolant brand is best?
We do not rank brands. The best coolant for your vehicle is one whose maker states it meets the exact spec in your owner's manual.
Are genuine coolants different from aftermarket ones?
Genuine coolants are made to the vehicle maker's own spec. Aftermarket products may state that they meet the same spec. Check the wording on the product page, and your warranty terms.
Why are some brands missing?
We list only products whose manufacturer data we could read and cite. Others will be added as sources become available.
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.