As a widely recognized heavy machinery and equipment in the industry, the fuel consumption of the Carter 400 excavator has always been the focus of many owners and operators. Understanding the real fuel consumption of the Carter 400 excavator helps users to better control costs and manage efficiency. According to official data and actual working condition tests, the average fuel consumption of the Carter 400 excavator in standard operating mode is about 25 liters per hour, but the specific fuel consumption will also be affected by a variety of factors, such as construction environment, operation technology, equipment maintenance status and load degree. To optimize the fuel efficiency of the Carter 400 excavator, it is recommended to carry out regular professional maintenance to ensure good engine performance, and at the same time cultivate good driving habits to avoid unnecessary idling and idling, which can also effectively reduce fuel consumption. Through scientific and reasonable use and maintenance, the Carter 400 excavator can achieve lower fuel consumption while maintaining high work efficiency. In summary, the fuel consumption of the Carter 400 excavator is not a fixed value, but will fluctuate with a variety of actual conditions, and only reasonable use and careful maintenance can maximize its economic benefits.