New Prestone Products AS145Y Radiator Stop Leak, 11 Oz, Each

Prestone Radiator Stop Leak’s patented formula quickly stops leaks in radiators, water pumps and heater cores while also protecting against pitting and corrosion. Unique combination of natural & synthetic components provides the ability to seal leaks up to 0.016" x 0.5". What makes this possible is the size, strength, & durability afforded by fibrous particles, the same materials in bulletproof vests. Size: 11 Oz Unique combination of natural & synthetic components provides the ability to seal leaks up to 0.016" x 0.5" What makes this possible is the size, strength, & durability afforded by fibrous particles, the same materials in bulletproof vests Seals even large leaks without interfering with the flow through the radiator & heater core tubes Boosts corrosion inhibitors to protect against pitting & corrosion, which cause radiator leaks Instructions: With engine off and cool, shake well and add entire contents to radiator and fill with Prestone 50/50 Antifreeze/Coolant. For systems larger than 12 quarts, use two bottles Run engine at the highest heater setting for 10 minutes after reaching normal operating temperature Turn off, allow to cool. Fill with Prestone 50/50 Antifreeze/Coolant. Check fluid frequently, top off as necessary Note: Do not use in a dirty or partially clogged radiator. Use Prestone Flush + Cleaner first.

New 1PK Prestone? Products AS145Y Radiator Stop Leak, 11 Oz, Each