Coolant needs to be flushed because it breaks down over the years and then loses the ability to serve its purpose of maintaining optimum temperature of the engine and preventing corrosion. Dirt and rust particles are floating inside the coolant which can clog your radiator or heater core. Clogs in the radiator will cause your car to overheat. A clog in the heater core will prevent heat from getting into the car.

It is best to follow your owner’s manual. Each car has its own maintenance schedule and your owner’s manual will tell you when in miles or month/years to have your coolant flushed. Here is a rule of thumb. Factory coolant or coolant that was added to the car when it was built should be drained by 160,000 Kilometers if not before or it should be done every 3 years to keep your engine running at its best!

The benefits of a Coolant Flush?
1. Removes Rust and Scale Deposit – Over time rust and scale deposits build up within the radiator. A flush helps to remove these deposits which get pushed out with the old anti-freeze. This is important since these build ups can cause overheating or even damage your radiator.
2. Lubricate the Water Pump – The additives in the coolant lubricate the vehicles water pump. This will lengthen the life of the water pump.
3. Removes Contaminants – A flush completely drains the system of the old anti-freeze which means that any contaminants that have made their way into the system will be flushed out as well. The additives in the coolant can lose important anti-corrosive properties over time which leads to the build up of particles. A radiator flush will remove these particles from the system.
4. Inspection of System – Most places will perform a complete inspection of your cooling system when they do a radiator flush. They will use pressure tests to check for leaks in the system.
5. Protect Against Rust and Foam– The new anti-freeze will have additives that help prevent rust and build up. It will also prevent foaming in the system which helps it operate efficiently.