Cooling systems are an important aspect of routine maintenance. It is recommended that cooling systems be flushed at least every two years to remove any dirt, rust or other buildup that could impede cooling efficiency and cause engine damage down the road. Flushing your cooling system will also replenish cooling fluid with fresh antifreeze and lubricants to keep the system functioning in optimal condition. To ensure your cooling system is running efficiently, make sure to check the coolant level regularly, flush it when necessary and always consult your mechanic if something doesn't seem right.