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Yellow Zerex G-05 HOAT coolant in a one gallon plastic jug

Zerex

Zerex G-05 HOAT Antifreeze Coolant 1 gal Yellow

SKU CH-4XYD-REBK0

HOAT formula protects all cooling-system metals in gasoline and diesel engines for 150,000 mi. or 5 yr. light duty and 300,000 mi. or 3 yr. heavy duty

  • Low-silicate, low-pH formula protects aluminum and all cooling-system metals against rust and corrosion
  • Phosphate-free HOAT chemistry minimizes inhibitor depletion for longer service life in gasoline and diesel engines
  • Ready-to-use 1 gallon container requires no mixing before filling the cooling system
  • Light-duty intervals rated at 150000 miles or 5 years for cars and light trucks
  • Heavy-duty intervals rated at 300000 miles or 3 years for commercial and heavy-duty vehicles

Zerex G-05 HOAT Coolant 1 gal

Valvoline Zerex G-05 is a low-silicate, phosphate-free HOAT antifreeze formulated to protect all cooling-system metals, including aluminium, against rust and corrosion in gasoline and diesel engines. It meets European standards and carries Daimler Chrysler approval for worldwide applications. The ready-to-use yellow fluid fills a one-gallon container.

Ideal for mixed fleets and European vehicles

Drivers of petrol or diesel cars, light trucks and heavy-duty vehicles needing a single coolant that meets European specifications and OEM approvals will find this fluid suitable. Buyers whose vehicles require a different chemistry such as OAT-only or conventional green formulas should select an alternative product.

Service life up to 150000 miles or 5 years

In light-duty service the coolant is rated for 150000 miles or five years, while heavy-duty use is rated for 300000 miles or three years. This interval is the primary figure to check against the vehicle manufacturer’s maintenance schedule before purchasing.

Highlights

  • Low-silicate, low-pH formula protects aluminum and all cooling-system metals against rust and corrosion
  • Phosphate-free HOAT chemistry minimizes inhibitor depletion for longer service life in gasoline and diesel engines
  • Ready-to-use 1 gallon container requires no mixing before filling the cooling system
  • Light-duty intervals rated at 150000 miles or 5 years for cars and light trucks
  • Heavy-duty intervals rated at 300000 miles or 3 years for commercial and heavy-duty vehicles

Specifications

BrandZerex

Questions about this item

How far can I drive before the coolant needs changing in a light-duty vehicle?

The coolant is rated for 150000 miles or 5 years in light-duty cars and trucks.

Does the fluid run hotter or build pressure differently after hours of highway driving?

The low-silicate, low-pH, phosphate-free formula is designed to minimize inhibitor depletion and protect all cooling-system metals against rust and corrosion during extended operation.

Can I pour this straight into the radiator or must I mix it with water first?

The product is ready-to-use and can be added directly without dilution.

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