Zerex

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.