As it ages, coolant picks up corrosion and different deposits created in the engine and, as a result, it can become acidic. That acidic fluid along with the dissimilar metals used in the cooling system can actually create a sort of crude battery. The resulting electrical charge in that acidic fluid can then accelerate corrosion of the different component parts of the system and also adversely affect the electronic engine controls.
Replacing the engine coolant as a part of a regularly scheduled maintenance program at the manufacturer’s recommended intervals is vital to your vehicle’s reliability and longevity. New coolant has a non-acidic, non-corrosive PH level that will not destroy your cooling system components. Using the proper coolant at the proper mixture will help keep your engine from overheating and can prevent it from freezing during cold weather.