Best Zerex Antifreezes Coolants in 2026

Formulated to replace the OEM fluid in Asian make vehicles such as Toyota , Lexus , Scion and others requiring a red, silicate free HOAT antifreeze/coolant

5 year/150, 000 mile . Silicate-free, long-life, phosphate Hybrid Organic Acid Technology chemistry

The long life formula provides protection for all cooling system metals from rust and corrosion. The silicate free, borate free formula helps protect against harmful scale and deposits

UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards

ORGANIC ACID TECHNOLOGY RESISTS 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

The formulation is designed for both gasoline and diesel engines

Its lower-silicate, reduced pH, phosphate free European technology protects all cooling system metals, including aluminum, from corrosion

ZEREX G-05 is a nitrite containing coolant designed to protect diesel engine cylinder liners from cavitation. It contains deposit control additives for protection from hard water deposits and scale

5 year/150, 000 mile . Silicate-free, long-life, phosphate Hybrid Organic Acid Technology chemistry

Formulated to replace the OEM fluid in Asian make vehicles such as Honda, Nissan, KIA, Hyundai and others requiring a blue, silicate free HOAT antifreeze/coolant

The long life formula provides protection for all cooling system metals from rust and corrosion. The silicate free, borate free formula helps protect against harmful scale and deposits

ZEREX DEX-COOL antifreeze coolant is approved by General Motors to the GM 6277M specification

ZEREX DEX-COOL antifreeze coolant contains no phosphates, silicates, borates, nitrates, amines and nitrites

Valvoline ZEREX DEX-COOL antifreeze coolant is a patented* carboxylate formulation with a service life of up to five years or 150,000 miles

The formulation is designed for both gasoline and diesel engines

Its lower-silicate, reduced pH, phosphate free European technology protects all cooling system metals, including aluminum, from corrosion

ZEREX G-05 is a nitrite containing coolant designed to protect diesel engine cylinder liners from cavitation. It contains deposit control additives for protection from hard water deposits and scale

Provides protection down to -34 degree fahrenheit

Helps prevent rust and corrosion

A patented organic acid corrosion inhibitor package to provide extended engine protection against rust and corrosion

Provides protection down to -34 degree fahrenheit

Helps prevent rust and corrosion

A patented organic acid corrosion inhibitor package to provide extended engine protection against rust and corrosion

UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards.Fit Type: Universal

PHOSPHATE ADDITIVES SAFEGUARD AGAINST CORROSION, SCALE AND RUST 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

HEAVY DUTY FORMULA to meet the harsher demands of heavy-duty diesel engines such as Cummins, DDC, MACK, Navistar, Paccar and Volvo

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

The formulation is designed for both gasoline and diesel engines

Its lower-silicate, reduced pH, phosphate free European technology protects all cooling system metals, including aluminum, from corrosion

ZEREX G-05 is a nitrite containing coolant designed to protect diesel engine cylinder liners from cavitation. It contains deposit control additives for protection from hard water deposits and scale

Patented low-silicate chemistry for heavy-duty applications with use of SCA

Patented corrosion inhibitor package provides rust and corrosion protection

The 50/50 mixture provides protection down to -34 Degree Fahrenheit

Patented low-silicate chemistry for heavy-duty applications with use of SCA

Patented corrosion inhibitor package provides rust and corrosion protection

Helps prevent boil-overs and freeze-ups

Fully formulated or pre-charged to protect against liner pitting and hard water scale

3 Years/300,000 mile protection guaranteed

Meets the Caterpillar EC-1, 14603, and DDC long-life specifications

UNSURPASSED FREEZE PROTECTION AND ANTI-BOIL PERFORMANCE outperforms industry standards

ORGANIC ACID TECHNOLOGY RESISTS CORROSION, SCALE AND RUST 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