Flushing the engine cooling system (citric acid)

Flushing the engine cooling system with citric acid is much cheaper than with special chemical compounds. The procedure for flushing the engine cooling system with citric acid is as follows:
- Drain the coolant and make sure it is very cloudy, since cleaning an uncontaminated engine with citric acid can harm the vehicle.
- Take 5 liters of distilled water and dilute 100-150 g of citric acid in it. To completely dissolve the acid, you can slightly heat the water over a fire.
Fill the engine with water, start the engine and drive the car for 30-60 minutes. The fact is that citric acid reacts with scale only at a temperature of 60-80 degrees, and during a car ride the temperature of the solution will rise to the desired level.
- After a car ride, drain the citric acid solution and make sure that the water has become dirty. Otherwise, repeat the cleaning procedure again.
- Flush the engine system. Fill with new cooler.
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Video timing:
0:00 Introduction
0:34 Recipe for preparing citric acid solution
0:53 Filling the flushing solution into the expansion tank
2:21 Flushing the engine cooling system with citric acid
3:46 Draining the flushing solution from the engine cooling system
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And in this video you will see How to check the expansion tank cap • Как проверить крышку р...
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