PEAK Long Life Antifreeze & Coolant features a LongLife coolant technology that is compatible for use in all automobiles and light duty trucks, regardless of make, model, year or original antifreeze color.
Compatible for use in all automobiles and light duty trucks Amber color will not change the current antifreeze color when used for topping off Provides 150,000 miles or 5 years of maximum protection when a complete cooling system flush and fill is performed Features a phosphate-free and silicate-free formula Meets ASTM D-3306 and ASTM D-4340
Was that the yellow bottle doc ?I also recently toped my coolant with Peaks but the one that was already mixed.