The Extended Life antifreeze/coolant uses organic-acid technology and corrosion inhibitors to protect against liner pitting and hard-water scale deposits for up to three years/6000 hours or 300,000 ...

The Zerex G-05 Antifreeze/Coolant works in both gasoline and diesel vehicles, ... The Valvoline MaxLife Universal Antifreeze/Coolant is a perfect coolant for high-mileage vehicles.

Extreme Extended Life antifreeze/coolant by Zerex meets the Cummins CES 14603 and Caterpillar ECI specifications for heavy-duty applications without requiring. Dec. 1, 2001.

David Turcotte is the technical director for Zerex, the line of coolant products from Valvoline. He's a good-natured guy with "Dr." in front of his name. That means he knows everything.