Truegard Ethylene Glycol Inhibited-Heat Transfer Fluid: Elevate Your Thermal Performance Upgrade your systems with the Truegard Ethylene Glycol Inhibited-Heat Transfer Fluid, a superior 100% Concentrate in a 55-Gallon Drum. Engineered for excellence, this versatile ethylene glycol-based fluid is your answer to seamless thermal management across a diverse range of applications.