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Your cart is empty.Zerex from Valvoline is the #1 selling OEM-approved coolant brand. Zerex G40 Antifreeze/Coolant is proven to maximize engine life in cars and light trucks. It’s the premium carboxylate formulation recommended for BMW, Mercedes-Benz, Porsche and VW cars and light trucks, as well as older Audi and Volvo vehicles. Specially formulated with state-of-the-art Si-Organic Acid Technology (Si-OAT) in an ethylene glycol base, Zerex is made for your car and protects better than industry standards against corrosion, leaking, deposits as well as freezing and boiling – the four main causes of cooling system failure, which is the leading cause of engine breakdown. Our premium grade long-life Si-OAT formula is nitrite, amine and phosphate-free. It protects from corrosion, scale and rust, so radiators, water pumps and other metal cooling system parts (including aluminum) stay clean and your antifreeze flows and functions properly. Zerex G40 Antifreeze/Coolant contains no imidazole, borates or nitrates. So whether you’re topping off your radiator or doing a complete system flush, trust Zerex G40 Antifreeze/Coolant. Made for your car. Made by Valvoline.
Hyung H Kim
Reviewed in the United States on February 28, 2024
Rather than spending more on "Porsche" branded (even though they don't produce them), this is very popular amongst Porsche owners (and other German cars, as applicable). Used to fill low coolant, the same color as the existing coolant (not sure what previous owner filled) and cheaper than OEM. Would not hesitate to purchase another Zerex (blue) for other cars. Highly recommended.
hector santana
Reviewed in the United States on October 26, 2024
Pictures and description matched item delivered
CK Kho
Reviewed in the United States on September 27, 2023
Easy to top off and doesn’t require dilution. Hand to have it around when you need it.
kim l foster
Reviewed in the United States on March 23, 2023
great
nilsa ramos
Reviewed in the United States on August 9, 2022
Was looking for G13 coolant for my 2016 GTI and this has the G13 Certification and it matches in color with G13 perfectly.
M. Rousseau
Reviewed in the United States on August 12, 2021
This is the appropriate replacement coolant for my Porsche. I have owned it for five years and never topped up the coolant. It started to concern me, and I found that this was the most cost effective product to use in this case.Really good for the price. I feel confident using it in an expensive engine. Glad I bought it.
CONSUMER I
Reviewed in the United States on October 14, 2021
very well priced.
Chog
Reviewed in the United States on January 27, 2021
I needed some coolant for my Porsche 911 and ordered this particular brand and works great. Amazon shipped it to me fast and well packaged.
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