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Zerex

Zerex HD Pre-Charged Ready to Use Antifreeze Coolant 1 gal Green

SKU CH-R5GS-7JBCX

Ready-to-use green coolant protects heavy-duty diesel engines from -34 °F to 330 °F

  • Ready to use straight from the bottle with no mixing required
  • Protects heavy-duty diesel engines against freezing down to -34 °F
  • Withstands high-temperature operation up to a 330 °F boiling point
  • Maintains corrosion control within a 10.0 to 11.0 pH range
  • Formulated specifically for heavy-duty diesel truck applications

Ready-to-Use Heavy-Duty Coolant

This one-gallon jug of Zerex HD antifreeze arrives pre-charged and ready to pour without mixing. The green liquid is formulated for heavy-duty diesel trucks and meets a pH range of 10.0 to 11.0. It delivers a boiling point of 330 degrees Fahrenheit and a freezing point of -34 degrees Fahrenheit.

Fleets and Shops Needing Immediate Fill

Maintenance teams who want a straight-fill product for Class 7 and 8 diesel engines will appreciate the no-dilution format. Buyers who prefer to mix their own concentrate for custom protection levels or who operate gasoline-powered light vehicles should look at something else.

Single-Gallon Bottle Simplifies Top-Ups

The plastic container holds exactly one gallon, making it easy to carry, store, and measure for system top-offs or complete flushes. No separate water source or measuring container is required, reducing the chance of mixing errors during roadside or shop service.

Highlights

  • Ready to use straight from the bottle with no mixing required
  • Protects heavy-duty diesel engines against freezing down to -34 °F
  • Withstands high-temperature operation up to a 330 °F boiling point
  • Maintains corrosion control within a 10.0 to 11.0 pH range
  • Formulated specifically for heavy-duty diesel truck applications

Specifications

BrandZEREX

Questions about this item

Will this coolant work with the heavy-duty diesel truck engine I already own?

Yes, it is formulated for heavy-duty diesel trucks and requires no dilution before use.

Can I mix this pre-charged green coolant with the older green coolant already in my system?

It is compatible with conventional green coolants, but a full flush is recommended for best performance.

How can I verify the coolant is protecting my engine after I fill the system?

Check that the fluid remains green, test freeze protection down to -34 °F, and confirm pH stays between 10.0 and 11.0.

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