A coolant fluid exchange service is a vehicle maintenance service where the old engine coolant of a vehicle's cooling system is replaced with fresh engine coolant. During the service, the old engine coolant is completely flushed out of the vehicle's cooling system. Additionally, a technician will check your vehicle's cooling system for leaks and damage, which can cause your vehicle to lose its vital engine coolant.
Engine coolant keeps an engine cool when it is hot by absorbing the heat of the engine. While the engine is running, the coolant circulates around the engine and dissipates the heat that it has absorbed from the engine. Engine coolant, also known as antifreeze, is also responsible for preventing engines from freezing in colder climates. As engine coolant circulates around an engine and performs its duties, it gradually begins to break down and becomes more ineffective for the engine. Once the coolant has broken down too much, it can no longer absorb heat and keep the engine cool.
Most vehicle manufacturers recommend that drivers have the engine coolant in their vehicles flushed at least once every 30,000 miles. This general recommendation ensures that drivers routinely have fresh engine coolant running through the cooling systems of their vehicles. Having a coolant fluid exchange done for your vehicle once every 30,000 miles will help you keep your vehicle well-maintained and allow you to avoid the problems associated with having engine coolant that is bad in your vehicle's engine.