Prestone Performance Chemicals
Prestone Radiator Stop Leak
Performance Chemicals PN: AS145Y
Our patented formula helps stop leaks before they start.
- Patented formula quickly stops leaks in radiators, water pumps, and heater cores, while also protecting against pitting and corrosion
- CLEAN a dirty or partially clogged radiator with Prestone® Flush + Cleaner before attempting to use.
- ENSURE engine is off and cool.
- SHAKE well and add entire contents of bottle into radiator. For systems larger than 12 quarts, use two bottles.
- FILL with Prestone® 50/50 Prediluted Antifreeze/Coolant and close cooling system.
- RUN engine with heater on high for 10 minutes after reaching normal operating temperature.
- ALLOW to cool and fill with Prestone® 50/50 Prediluted Antifreeze/Coolant as directed.
- Check coolant level frequently and top off as needed.
WARNING: HARMFUL OR FATAL IF SWALLOWED. KEEP OUT OF REACH OF CHILDREN. CAUTION: DO NOT remove radiator cap when engine is hot. See owner’s manual for special cooling system service instructions.
- Unique combination of natural and synthetic components provides the ability to seal leaks up to 0.020″ X 0.5″.
- What makes this possible is the size, strength, and durability afforded by fibrous particles, the same materials in bullet-proof vests.
