Mobil Delvac Extended Life Coolant/ Antifreze (Pail)

Up to 1,000,000 miles or 8 years of protection with Organic Acid Technology (OAT)

Mobil Delvac™ Extended Life Coolant/Antifreeze is a high-performance, long-lasting coolant designed specifically for modern commercial vehicles. Engineered with Organic Acid Technology (OAT), it delivers superior protection against freezing, overheating, and corrosion while extending service intervals up to 1,000,000 miles or 8 years — whichever comes first. Compatible with EGR, SCR, and ACERT engine technologies, this non-abrasive formula protects water pump seals and reduces scale formation in hard water conditions. It eliminates the need for supplemental coolant additives (SCAs), simplifying maintenance and reducing operational costs. The coolant is fully compatible with other OAT and NOAT formulations and can be mixed with conventional coolants up to 25% without compromising performance. Its excellent elastomer compatibility ensures long-term integrity of cooling system components.