What will you use to dilute the concentrate, which is the main component of the cooling liquid?
Show the correct answer
Correct answer
A. Distilled water.
Explanation
In the photo, you can see the coolant expansion tank with level marks and a sticker showing the type of coolant. You dilute coolant concentrate with distilled water - answer A.
The Road Traffic Act requires a vehicle to be maintained so that using it does not endanger safety. Distilled water contains no mineral salts, so it does not form scale in the radiator, the engine channels and the water pump. Highly mineralised water (answer B), for example ordinary mineral water, leaves deposits that block the thin channels of the radiator and make cooling worse. Hydrogen peroxide (answer C) is a disinfectant, which would cause corrosion in the cooling system. You choose the proportions of concentrate and water according to the manufacturer's instructions, so that the coolant does not freeze at the lowest expected temperatures.
Legal basis: Art. 66 para. 1 point 1 of the Road Traffic Act (Prawo o ruchu drogowym)