Chang 'an Benben has two water tanks. What do you mean?

Changan Benben car has two water tanks, one is the engine coolant tank, and the other is the warm air tank inside the car. The following is the introduction of the water tank: 1. Working principle: The water tank is composed of hollow copper pipes, and the high-temperature coolant enters the water tank and circulates back to the engine cylinder wall after heat dissipation. Through the circulation of cooling liquid in the engine water channel, the heat of the cylinder block is absorbed, and then the heat is dissipated through large-area fins, thus maintaining the normal working temperature of the engine. 2. Coolant: it not only plays a cooling role, but also plays an anti-freezing role, and is also rust-proof and corrosion-resistant. High boiling point and low freezing point, the effect is much better than water.