Most radiator problems are caused by car owners not regularly checking the health of the radiator, especially the water/coolant that helps to ensure correct heat dissipation in the engine. It is especially important for older cars to have regular check-ups, including regular radiator checks. Rusty radiator water can cause your engine frost plugs to leak, overheat the engine, and can block your car’s radiator – leading to even bigger problems if it is not fixed.

What causes rusty radiator water and how can you reduce it?

The best way to reduce rusty radiator water is to use a high-quality coolant and only put clean water into your radiator. Some water contains contaminants that when heated to boiling point can cause metallic elements to accumulate in your radiator which can cause leaks and adversely affect the efficiency of your radiator. Using high-quality coolant/ anti-freeze will help to lubricate and protect the aluminum parts in the radiator and the water pump. It is recommended to using a 50/50 ratio of coolant and distilled water in most car models, our trained mechanics will be able to help you with this.

Your radiator liquid can also turn rusty when air gets into the radiator. When the radiator coolant cools down, it contracts which can cause an air pocket. This can cause rusting within your cooling system and can damage your water pump’s seal and bearings.

You should also regularly check your cooling system for leaks. Leaks lessen the performance of your radiator and can cause rust to occur due to the excess steam moisture in your engine. If your radiator needs to be topped up regularly this is a good sign that it is leaking, and you should take your vehicle to your mechanic for a check-up.

Radiator installation

Why should you replace rusty radiator water?

Regular maintenance is essential when it comes to vehicle engines. Most car owners ensure their vehicles receive regular oil changes and tune-ups, and radiator flushes should also be part of a good maintenance plan. If you own an older model car, you should flush your radiator every year. Flushing the radiator regularly will remove excess rust and debris that has built up in the radiator and ensure it lasts a lot longer. The safest easiest way to do this is to take your car to your mechanic, who will know all the correct procedures to follow.


Benefits of a radiator flush

  • Removal of Contaminants: Over time, rust, sediment, and other contaminants can build up in the radiator and cooling system. These deposits can hinder the flow of coolant and reduce the radiator’s efficiency. A radiator flush helps to remove these deposits, ensuring proper coolant circulation and optimal cooling performance.
  • Prevention of Cooling System Blockages: If the radiator and cooling system become clogged with debris or sediment, it can lead to blockages that restrict coolant flow. This can result in overheating, engine damage, or even a complete breakdown. Flushing the radiator helps prevent blockages, ensuring that the cooling system operates smoothly.
  • Protection against Corrosion: Coolant contains additives that protect the cooling system components from rust and corrosion. Over time, these additives can break down, leaving the system vulnerable to corrosion. A radiator flush helps to remove old coolant and any corrosive substances, providing an opportunity to replenish the system with fresh coolant that offers optimal corrosion protection.
  • Maintenance of Optimal Cooling Efficiency: When the radiator and cooling system are free from deposits and contaminants, they can efficiently dissipate heat from the engine. This helps to maintain the engine’s operating temperature within the optimal range, promoting better fuel efficiency and overall engine performance.
  • Prolonged Lifespan of Cooling System Components: By regularly flushing the radiator, you can help extend the lifespan of various cooling system components, including the radiator itself, water pump, hoses, and thermostat. Removing contaminants and preventing corrosion reduces the risk of premature component failure, saving you from expensive repairs or replacements.

Radiator flushing to rust in Hamilton

Does your radiator have rusty water? If so, we can help! At Grimmer Motors, our team of skilled mechanics will first examine your radiator for signs of corrosion and rust and then drain the radiator fluids completely before adding a new mixture of coolant and clean water. For radiator flushing in Hamilton, contact Grimmer Motors today!

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