What are the consequences of not cleaning a car's radiator?

Neglecting to clean your car's radiator can lead to a slew of problems. Dirt and debris build-up can cause the radiator to overheat, leading to engine damage. It can also lead to decreased fuel efficiency as your car has to work harder to stay cool. Further, it can result in costly repairs down the line. So, routinely cleaning your car's radiator is a small task with big benefits for your vehicle's performance and your wallet.