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NAPA · Tools & Supplies
1EXT
In stock · ships from Knoxville
NAPA Extended Life Antifreeze/Coolant is a 1-gallon concentrate formulated with ethylene glycol and extended life inhibitors.
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Primarily marketed for light-duty vehicles. For heavy-duty trucks, verify compatibility with the engine manufacturer’s coolant requirements. Some heavy-duty engines may need nitrite-containing SCAs or other specific formulations even with ASTM D4985 compliant concentrate.
Part data verified against 1 catalog sources
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It provides long-lasting protection against freezing, boiling, rust, and corrosion in cooling systems. Suitable for all makes and models of automobiles and light-duty trucks, it can be used as a top-off or for a complete drain and fill, offering up to 150,000 miles or 5 years of service when properly flushed. While designed for light-duty vehicles, it meets the ASTM D4985 standard for heavy-duty diesel engines, which may allow its use in some commercial trucks with appropriate supplemental coolant additives if required by the manufacturer.
Part Number: 1EXT
EXT/LIFE GAL
Unit: ea
Dealer: Post Onsite
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