Mahindra tourister Radiators can be seen in many modern vehicles. They have been made to work with several types of coolant. These are made from aluminum, which provided improved heat dissipation. These are lightweight in nature and help in making reduction in the overall vehicle's weight. Made to dissipate heat, these move through many tubes. These are included with a coolant cap, which help in maintaining a certain level of compression in the cooling system. Their use is required to prevent the occurrence of overheating.