Antifreeze Types You will need to use the correct type of antifreeze in your vechicle. In recent years,antifreeze manufacturers have been creating universal coolants that are meant to work on all vehicle types. These extended-life coolants only differ in color. Some may be orange while others may be dyed blue or purple. While universal coolants are meant to remove confusion,there are types made for specific vehicle makes. Green Antifreeze Green antifreeze is the traditional type of antifreeze most commonly used in North America. The silicate and phosphate makeup of the product provides protection for aluminum and bare iron surfaces. It is important to use the correct type of coolant for your vehicle. For example,do not use an OAT coolant when the manufacturer specifies to use an hybrid OAT coolant. This coolant needs to be changed every 30,000 miles or once every two to three years. OAT-based Extended-life OAT,short for Organic Acid Technology,are coolants containing ingredients suc ... Read more »