A DIY coolant flush every three to five years or 30,000 miles removes rust and scale. That helps prevent coolant leaks and engine mechanical problems. A DIY flush will cost less than $30.

One of the things usually people forget to do is flush the cooling system every 2 or 3 years. By doing so they risk causing permanent and consistent damage to their engines due to various reasons ...

If the cooling system becomes damaged, you risk the possibility of the engine overheating–a much costlier mistake than paying for a coolant flush. Finding the Right Fluid Lubo Ivanko // Getty Images ...

Some manufacturers recommend you drain and flush the engine’s cooling system and change the coolant more often on vehicles subjected to “severe service,” such as frequent towing, ...