Is it necessary to change antifreeze in winter in northern regions?

[RiverDella]

It is necessary to change antifreeze in winter in northern regions. The functions of automotive antifreeze: Automotive antifreeze provides anti-corrosion protection for cooling system components; prevents scale formation to avoid reducing the heat dissipation effect of the radiator; ensures the engine operates within the normal temperature range. Precautions for using antifreeze: The antifreeze level needs to be checked regularly, and replenished promptly if it falls below the minimum level; observe whether the antifreeze has turbid sediments, and replace it in time if there are turbid substances; different vehicle models have different antifreeze colors, so they cannot be mixed; before winter, measure the freezing point of the antifreeze to prevent it from freezing.