ACDelco Extended Life Coolant Pre-mixed is a long-life hybrid organic acid technology coolant formulated for both automotive and heavy-duty diesel engines. Free of phosphates, nitrites, and amines, it delivers excellent corrosion protection, thermal stability, and reliable cooling performance, ensuring extended service life and compatibility across a wide range of vehicles.

ACDelco DexCool® Provides long-life protection against all forms of corrosion through the use of optimized and patented organic corrosion inhibitors. Excellent and lasting high-temperature corrosion protection is provided for aluminum heat transfer surfaces contained in modern engines. The inhibitor package of ACDelco Dex-Cool® offers excellent captivation even without using nitrate-based supplemental coolant additives (SCA’s).