How do you remove dex-cool sludge?

To remove Dex-Cool sludge, first, drain the coolant from the radiator and engine block. Use a flush solution specifically designed for cooling systems to clean out any buildup, circulating it through the system as per the product instructions. After flushing, thoroughly rinse the system with water until it runs clear, then refill with fresh Dex-Cool coolant, ensuring the proper mix with distilled water. Finally, bleed the system of air to prevent overheating.