R6 5.5OZ BARS LEAKS STOP LEAK

Mixes with all quality anti-freeze. Harmless to rubber, plastic, aluminum, and all other metals. Millions of tiny particles form a lasting internal and external seal in engine blocks and heads. . Radiator and heater cores, head gaskets, hose connections, an d freeze plugs. For regular passenger car. Use one small bottle for 4 cylinder car; and two small or one large bottle for 6 and 8 cylinder vehicles, or hard-to-stop leaks in 4 cylinder cars.