Dex-Cool is a long-life coolant that is specifically designed for General Motors vehicles. It is a 50/50 mixture of ethylene glycol and water, and it contains corrosion inhibitors and other chemicals to protect the engine cooling system.
Dex-Cool is typically pink or orange in color, and it should be changed every 5 years or 150,000 miles. However, it is important to check the coolant level regularly and add more if necessary to keep the engine cool.
