Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon
Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon
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Zerex

Zerex G05 Phosphate Free Antifreeze Coolant Concentrate 1 Gallon

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Key item features

  • 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
Current price is $21.99$21.99/gl
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Customer ratings & reviews

4.8 out of 5 stars
stars175 ratings92 reviews
How item rating is calculated
5.0
4.8
5.0
5.0
5.0
5.0
  1. 5 stars87% (153)
  2. 4 stars10% (18)
  3. 3 stars2% (3)
  4. 2 stars1% (1)
  5. 1 star0% (0)

Reviews summary

Pros

  • : Works with various car models and types.
  • : Offered at a lower cost than similar products.
  • : Made with high-end ingredients and build.
  • : Can be mixed with any color.
  • : Simple design makes it easy to use and mix.
  • : Bottle design allows for smooth fluid dispensing.
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Showing 1-3 of 92 reviews

Sep 23, 2025
Adammiracle
Top Reviewer
5 out of 5 stars review

Verified Purchase

2 gal. 4 price of 1 jug 50/50 use distilled water

for just three or four dollars more you get the concentrated instead of using the 50/50 you can get two gallons of antifreeze out of this it ain't going to be perfect exact use distilled water and cut it in half and you got two gallons for three or four dollars more than what you can get the 50/50 I always use concentrated that's all the factory does is cut it with half water distilled

Helpful?2QVS5XBV7T5G119274583
May 19, 2026
DonG
5 out of 5 stars review

Verified Purchase

Gold Antifreeze

Suitable replacement for gold antifreeze made by American car manufacturer Zerex has been around a long time and it is a quality product at a fantastic price point

Helpful?2QVS5XBV7T5G119274583
Jun 15, 2026
Daniel
Top Reviewer
Sold byAbit ProductsDelivered byWalmart
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