12378255 - GM/AC Delco Cooling System Seal Tablets Contains Five 4 Gram Tablets

Original organic formula designed for use in cooling 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

Applications:

4 and 6 cylinder engines: 20 grams of material - (5 pellets of 12378254 or 2 pellets of 3634621)

Cadillac Northstar: 30 grams of material (7 pellets of 12378254 or 3 pellets of 3634621)

Cadillac 4.1L, 4.5L, 4.9L : 60 grams of material (15 pellets of 12378254 or 6 pellets of 3634621)