The Importance of Getting a Coolant Flush


Engine coolant, also known as antifreeze, is a heat transfer fluid designed to remove excess heat from your engine. It’s made up of a combination of ethylene or propylene glycol and water, normally in a 50/50 ratio. Engine coolants come in many different types. When it comes to picking the right engine coolant for your car, all you have to do is grab the one your owner’s manual recommends.


The engine creates a lot of energy and heat while the car is moving. It’s the job of the exhaust and cooling system to make sure the engine stays cool. The coolant absorbs the heat from the engine and stops the engine water from boiling in the summer. In addition, it also ensures metal parts don’t rust and rubber or plastic parts don’t corrode.


Without the coolant, the heat produced during constant internal combustion would ruin the engine very quickly. Although coolant is mixed with water, the water alone isn’t able to keep the engine cool. The heat of the engine would eventually start boiling the water, or the summer heat would evaporate it.

Why Should I Get a Coolant Flush?

Coolant flushes provide many benefits to your cooling system. It is important to maintain your cooling system, just like every other part of your automobile, which is why we recommend a coolant flush once a year to keep your cooling system working effectively.

What are the benefits of a coolant flush?

  1. Coolant flushes remove rust and scale deposits, which build up over time. It’s important to get rid of these deposits because they can cause overheating and damage your entire cooling system.
  2. The new anti-freeze contains additives that work to lubricate your automobile’s water pump, which can help extend the life of your water pump.
  3. The additives in the new anti-freeze also help prevent rust from building up in the water pump, which allows the cooling system to operate more efficiently.
  4. Over time, the old anti-freeze loses its anti-corrosive properties, which allows for contaminants to build up in the cooling system. Getting a coolant flush will completely clean these particles from the system.
  5. When you get a coolant flush, it is also common to receive an inspection of your entire cooling system including the thermostat, radiator and all hoses and belts. This is beneficial because it checks for leaks and other potential problems.
  6. Getting a coolant flush will prevent the old anti-freeze from becoming acidic. This is important because once it starts to become acidic it will break down and can damage the bearing in the water pump, the rubber hoses and the aluminum components of the engine.

Every make and model is different, and therefore is on a varied maintenance schedule. Check your owner’s manual to see when it’s time for your vehicle to receive a coolant flush. Usually this flush needs to be performed once a year. If it has been over a year since your vehicle has received a coolant flush, visit your local Christian Brothers Automotive today.