Why/When to change Anti-freeze/Engine coolant?
Your vehicle’s engine longevity relies on how effectively your coolant can remove heat from your engine. Also it is formulated to protect and lubricate internal components of your engine’s cooling system, such as your water pump. We also rely on this fluid to keep our cooling system from freezing solid in the winter, and severely damaging our engines. As this fluid gets older the various compounds or silicates do not stay in suspension as they were designed to do and settle to the bottom of your engine’s cooling system. Obviously the fluid should be changed before it gets to this point, and you should be having it checked at every oil change. Usually a 50/50 mix will bring your antifreeze protection to -40F, and that is where you want it to be. It is important to understand that if antifreeze is overprotected, lets say to -60F, the antifreeze can work against you and actually gel up in sub-zero temperatures, and not flow as it should. Too weak and your enginge can freeze in the winter
