









🛠️ Keep your engine cool, clean, and unstoppable with Zerex G40!
Valvoline Zerex G40 is a premium phosphate and nitrite-free antifreeze concentrate featuring advanced Si-Organic Acid Technology. It delivers superior freeze and boil protection (-84°F to 270°F), resists corrosion on all cooling system metals including aluminum, and comes with a 5-year/150,000 mile guarantee. Trusted by top OEMs like BMW and Mercedes, it ensures long-lasting engine performance and reliability.





| Manufacturer | Valvoline |
| Brand | Zerex |
| Model | HT-12 |
| Item Weight | 8.94 pounds |
| Product Dimensions | 7.38 x 3.83 x 12 inches |
| Item model number | 861526 |
| Manufacturer Part Number | 861526 |
S**.
Good product. Read instructions before use.
Easy to use. Fix my problem.
L**N
Fits the G40 specification for Hybrid Organic Acid Technology (HOAT) coolant.
Why did you pick this product vs others?:Required for my make of vehicle (Aston Martin). Way cheaper than what the dealer would have charged.
G**N
Anti freeze 🥶
Excellent product
D**D
Worked great
Worked great on my 2010 VW Jetta
J**N
Vehicle use
I put this product in my vehicle about a month ago and everything at this point in time seems to be okay.
X**W
Excellent coolant for Porsche
I could not find suitable coolant at the local auto parts shop or online, so I was very happy to find this coolant for my 911 turbo.
D**N
Good Stuff
Pretty cheap considering its concentrate. It’s the right stuff for VAG cars. not sure about mercedes or bmw. This one doesn’t degrade with heat from EGR systems or have other weaknesses OE fluids have.
D**4
Perfect for my VW Beetle
This product works with my 2013 VW Beetle. However - don’t forget to dilute the product with water (read your car specs for water to coolant ratio).
Trustpilot
4 days ago
2 weeks ago
5 days ago
1 month ago