Bar's Products 1196 Radiator Stop Leak Concentrate 11 oz

Bar's Leaks 1196 Radiator Stop Leak Concentrate is a fast-acting liquid formula specifically designed to stop minor to moderate cooling system leaks and drips caused by normal wear and age. This 11-ounce concentrate treats cooling systems up to 4 gallons, making it ideal for most passenger vehicles and light trucks with 6, 8, or 10-cylinder engines. For 4-cylinder engines, use half the bottle.

Key Features:

• Contains millions of tiny particles that permanently seal internal and external leaks in plastic, aluminum, and metal radiators
• Effectively seals leaks in radiators, gaskets, heater cores, blocks, heads, and freeze plugs
• Compatible with all types and colors of antifreeze coolant including green (silicate-based), red, orange, yellow (OAT/HOAT), and water-based coolant mixtures
• Pre-dissolved liquid formula for easy application - no mixing required
• Non-clogging formula that won't harm clean heater cores when used correctly
• Fast-acting - most leaks stop within minutes to an hour of normal driving
• Can be used for preventative maintenance once a year to guard against future leaks

Made in the USA by Bar's Leaks, a trusted brand with over 75 years of experience in automotive leak repair solutions. Simply add to your cooling system and run the engine for 15-30 minutes for best results. When treating heater core leaks, ensure heater control is set to HOT position.