Our #1 Zerex pick
Top-ranked Coolant / Antifreeze in our Zerex lineup, scored independently on effectiveness, health, and environmental impact. No paid placements.
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Zerex is the coolant and antifreeze arm of Valvoline, operating as a dedicated sub-brand with its own product line and OEM approval portfolio. Founded in 1922, Zerex has built relationships with Ford, Chrysler (Stellantis), Mercedes-Benz, and heavy-duty diesel OEMs, earning application-specific approvals documented in Zerex's Technical Data Sheets. The brand's G-05, G-48, and DEX-COOL-compatible lines each target specific inhibitor chemistries matched to the vehicle manufacturer's cooling system metallurgy requirements.
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As an Amazon Associate I earn from qualifying purchases. Full disclosure