Genuine GM

12378255

Genuine GM Fluid 3634621 Cooling System Seal Tablet - 4 Grams, (Pack of 5)

Oils & Fluids

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

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.

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