How often does my car need a radiator flush?

The radiator is part of the internal combustion cooling system in a car. This is a form of heat exchanger designed to transfer heat from the heated coolant mixture as it flows through the vehicle. Radiators work by pushing hot water out of the engine block through pipes and fans that allow the heat of the coolant to dissipate. As the fluid cools, it returns to the cylinder block to absorb more heat.

The radiator is usually mounted in front of the car behind a grille to take advantage of the air that passes through while the car is moving. Those with a fan usually have either an electric fan; which is usually mounted on a radiator, or a mechanical fan mounted on an engine.

However, in vehicles with automatic transmission, a hot transmission oil cooler is included in the radiator.

What is a radiator flush?

Radiator flushing is performed to prevent the vehicle from overheating and to maintain an efficient radiator system. This procedure is done by draining the original coolant from the radiator and replacing it with new coolant or antifreeze mixed with water. The mixture or solution is then left to circulate through the car's cooling system so that it can dissolve and remove any solid deposits inside the radiator channel. When circulation is complete, the coolant or antifreeze mixture is drained and replaced with a standard coolant/water mixture.

How often do you need to flush the radiator?

There is no set rule as to how often a vehicle needs a radiator flush. Car manufacturers recommend doing this at least every two years or every 40,000-60,000 miles. Periodically flushing the radiator prior to this period is not a problem as it helps to clean and prevent buildup of dirt and deposits. Fresh antifreeze also helps protect your vehicle from extreme cold or heat. A certified AvtoTachki field mechanic can come to your home or office to flush the coolant or check why your vehicle is overheating.