Lightweight cars are an inevitable trend of the times. With the worldwide development of fuel saving and the implementation of technical measures, the use of aluminum alloy die-casting on cars will be promising. Take a tank truck as an example to illustrate this problem. If aluminum alloy is used instead of steel, a tank truck with a volume of 45000L will reduce the weight by about 2500kg compared to a traditional tank truck.

Evaluated in terms of fuel consumption, the car can save about 0.6L of fuel for every 100kg of weight reduction and the same driving of 100㎞. If one liter of fuel consumption is reduced, CO2 emissions can be reduced by 2.33㎏.
Similarly, in the lightweight of automobiles, aluminum alloy die-casting control arms are used instead of traditional steel control arms, and the weight of each ordinary car can be reduced by 13kg. This alone, calculated on the basis of 5 million vehicles nationwide and 1,000 km per year per vehicle, can save 3.9 million liters of fuel and reduce CO2 emissions of 9.087,000 kg.

Therefore, many European and American automobile companies have invested a lot of manpower and financial resources to study how to reduce the weight of the body. The use of aluminum alloy die-casting instead of steel to manufacture some parts has been continuously used in high-end cars.