Genuine GM Fluid 12378255 Cooling System Seal Tablet - 4 Grams, Pack of 5 - Prevent Leaks & Protect Engine - Perfect for GM Vehicles, Trucks & SUVs

Original organic formula designed for use in radiator systems to seal leaks and prevent leaks due to casting porosity in engine components. Seals minor leaks and porosity in cooling systems. DEX-COOL compatible. Non-toxic.

Non-toxic

DEX-COOL compatible

Engine application is based on liters of volume in cooling system

Formulated for automotive use

For use with all vehicles