What Happens If the Antifreeze Level Is Too High?

[StCatherine]

For regular brand antifreeze, having too much does not pose any harm. Excess antifreeze will expand due to heat during vehicle operation and overflow through the pressure relief valve, leaving only some stains behind. However, it is best to use a syringe to remove any antifreeze above the maximum level. Some low-quality antifreeze products from substandard manufacturers can be corrosive, damaging not only the cooling system but also engine compartment wiring and other components if the excess antifreeze overflows. In severe cases, it may even corrode the radiator and leak into the engine. Generally, vehicle antifreeze should be replaced every 2 years or 40,000 kilometers, but this is only a reference interval. For commercial vehicles with higher mileage, the replacement interval should be shorter. Since driving conditions vary for each vehicle, the replacement schedule should be based on actual usage. Regularly check the antifreeze level and top it up if it is low. If suspended particles, sediment, or signs of deterioration or discoloration are observed, replace the antifreeze immediately and flush the system. Methods to determine if antifreeze is low: Observe the antifreeze warning light on the dashboard. If it lights up, it likely indicates low antifreeze, though it could also be due to excessively high cylinder temperatures. Check the antifreeze reservoir. If the level is below the minimum mark (MIN), do not continue driving and add antifreeze promptly. Check the water level markings on the antifreeze tank. The normal antifreeze level should be between the maximum and minimum marks. If it is below the minimum mark, it indicates a shortage of antifreeze.