Peak, gallon, full strength concentrate antifreeze, 10X more scale fighting inhibitors, compatible for use in all automobiles & light duty trucks, mixes with any color antifreeze, provides 150,000 miles or 5 years of protection when a complete cooling system flush & fill is performed, features a phosphate free & silicate free formula, meets astm d-3306 & astm d-4340, color is yellow.
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