Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon Yellow for Ford Chrysler Mercedes-Benz
Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon
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Zerex

Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon

207 ratings

Key item features

  • Exceptional Performance: Delivers unsurpassed freeze protection and anti-boil performance, outperforming industry standards against the four main causes of cooling system failure.
  • Comprehensive Metal: Utilizes Hybrid Organic Acid Technology (HOAT), a low-silicate, phosphate-free formula, guarding all cooling system metals, including aluminum, from rust, scale, and corrosion.
  • Component Preservation: High-quality additives protect against leaks and prevent harm to gaskets, hoses, plastics, or the vehicle's original finish.
  • Engine Versatility: Suitable for both gasoline and diesel engines, maximizing engine life in newer Ford, Chrysler, and Mercedes-Benz cars, light and heavy-duty vehicles.
  • Dilution Ratios: Yellow concentrate mixes with water: 50/50 for -34 to 265F, 60/40 for -62 to 270F, and 70/30 for -84 to 267F operating temperatures.
  • Specialized Formulation: Contains virgin ethylene glycol, HOAT, nitrites for diesel-engine cylinder liner protection, and denatonium benzoate as a bittering agent.
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Specs

Antifreeze & coolant type, HOATCompatible cars, MultipleVehicle fitment type, SpecificBrand, ZerexColor, YellowVolume capacity, 1 gal

About this item

Product details

Zerex from Valvoline is the #1 selling OEM-approved coolant brand. Zerex G05 Antifreeze/Coolant is proven to maximize engine life in newer Ford, Chrysler and Mercedes-Benz cars, light trucks and heavy-duty vehicles. Suitable for both gasoline and diesel engines, its original long-life chemistry is specially formulated with the highest quality virgin ethylene glycol and Hybrid Organic Acid Technology (HOAT). 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 low-silicate, reduced pH, phosphate-free formula with Hybrid Organic Acid Technology (HOAT) protects all cooling system metals (including aluminum) from corrosion. It contains nitrites that protects diesel-engine cylinder liners from cavitation, while deposit control additives guard against hardwater deposits and scale. So radiators, water pumps and other metal cooling system parts stay clean and your antifreeze flows and functions properly. Whether you’re topping off your radiator or doing a complete system flush, trust Zerex G05 Antifreeze/Coolant. Made for your car. Made by Valvoline.
  • Unsurpassed freeze protection and anti-boil performance outperforms industry standards
  • Hybrid organic acid technology fights rust, scale & corrosion while protecting all cooling system metals (including aluminum)
  • High-quality additives protect against leaks and won’t harm gaskets, hoses, plastics or original vehicle finish
  • Yellow concentrate formula should be mixed with clean tap water or demineralized water at 50/50 ratio for temperatures -34 to 265F; 60/40 for -62 to 270F; and 70/30 for -84 to 267F
  • 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
  • Batch-tested in the lab, fleet-tested in the real world to help car and truck owners achieve optimal performance and maximize engine life.
  • Contains 30 – 50 ppm of denatonium benzoate as a bittering agent
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Antifreeze & coolant type

HOAT

Compatible cars

Multiple

Vehicle fitment type

Specific

Brand

Zerex

Warranty

Warranty information

5 YEAR/150,000 MILE GUARANTEE protects against engine failure caused by freeze-ups or boil-overs

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Warnings

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Customer ratings & reviews

4.8 out of 5 stars
stars
207 ratings96 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars87% (181)
  2. 4 stars9% (18)
  3. 3 stars1% (3)
  4. 2 stars0% (1)
  5. 1 star2% (4)

Reviews summary

Pros

  • : Works with many car brands and models.
  • : The product undercuts other sellers on cost.
  • : Simple to mix and apply without hassle.
  • : Can be mixed with various colors.
  • : Bottle design allows for smooth fluid dispensing.
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Showing 1-3 of 96 reviews

Oct 8, 2026
Reviewer name: RICHARD
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Not much can be said. It is antifreeze.

The price is not bad for concentrate, and G05 is not that easy to find. It was shipped in plastic bags with the tops taped. That is the way it should ship. A lot of folks do not tape the tops on liquids and that can and has been as problem.

Helpful?2QVS5XBV7T5G119274583
Jun 15, 2026
Reviewer name: Daniel
Top Reviewer
Sold byAbit ProductsDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This is the BEST Quality coolant ( don't mix with other brand or type use only the same if you mix it will blend with other brand ingredients and the coolant will gel and damage your radiator )

Helpful?2QVS5XBV7T5G119274583
Jun 27, 2026
Reviewer name: Nadine
Sold byAbit ProductsDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Exceptional pricing, including delivery!!

Excellent price for this oil! We had ,unfortunately, to buy one gallon at O'Reilly's as an emergency situation...here at Walmart, their price for 3 gallons, as a case, is unbeatable!!!

Helpful?2QVS5XBV7T5G119274583
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