Zerex Extended Life Nitrite Free Heavy Duty Antifreeze Coolant 50/50 Ready-to-Use 1 GA
Zerex Extended Life Nitrite Free Heavy Duty Antifreeze Coolant 50/50 Ready-to-Use 1 GA
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Zerex Extended Life Nitrite Free Heavy Duty Antifreeze Coolant 50/50 Ready-to-Use 1 GA

Key item features

  • Heavy duty formula meets the harsher demands of heavy-duty diesel engines such as Cummins, DDC, International, Paccar, Volvo and Ford trucks
  • Organic acid technology resists corrosion, scale and rust to protect diesel engines and ensure your antifreeze flows and functions properly.
  • Protects all cooling system metals including aluminum and won’t harm gaskets, hoses or original vehicle finish
  • Pre-mixed yellow solution is ready-to-use and comes in a 50/50 ratio with deionized water to eliminate the guesswork
  • 10 years/1,000,000 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
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Customer ratings & reviews

4.8 out of 5 stars
stars33 ratings32 reviews
How item rating is calculated
  1. 5 stars82% (27)
  2. 4 stars12% (4)
  3. 3 stars6% (2)
  4. 2 stars0% (0)
  5. 1 star0% (0)

Reviews summary

Pros

  • : Offers good packaging and safety features at this price point.
  • : Works with most engines and protects from rust.
  • : Compatible with various vehicles including diesel trucks and tractors.
  • : Can be used in various types of vehicles.
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Showing 1-3 of 32 reviews

May 16, 2022
RayBans
5 out of 5 stars review

Simple ready to use coolant.

I check my 2020 Ford truck fluid levels every month. Most times the coolant is between min and max. When it's below min I add Zerex Extended Life Nitrite Free Heavy Duty (HD) Antifreeze/Coolant 50/50 and don't worry about doing it wrong because it's already mixed and ready to use.

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Jun 3, 2022
Ledbelly
5 out of 5 stars review

Looking for coolant for Kubota diesel.

I was looking for a coolant that meets the factory specs for my Kubota diesel tractor engine. This Zerex extended life nitrite free HD meets the specs SAE J1034 which is listed in the Kubota manual, and it meets SAE J814 as well. Good enough. I drained the old coolant, gave it a flush and a couple rinses, and added the new Zerex coolant. The appearance of the Zerex is yellow, where the original coolant was green. Not sure if that makes a difference. After finishing up, I took the tractor out to warm it up, including climbing a pretty steep hill. It ran cool as normal. I am satisfied that this coolant will do the job in this engine at half the cost of the Kubota factory coolant. Time will tell how it holds up, as for now, I am quite satisfied with this product, and glad to have an aftermarket product that will work in Kubota.

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May 22, 2022
Leighn225
5 out of 5 stars review

A must for every vehicle owner

Zerex extended Life Nitrite free heavy duty antifreeze/coolant 50/50 ready to use is a must for every vehicle owner, anytime of the year. It keep your engine cool in the summer and keeps it from freezing in the winter months. The brand I have trusted for years and will continue to purchase for my coolant needs. I would highly recommend it, it is prediluted, so no mixing required.

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