Master Zheng was originally a peasant who was a share of the county, and lived a simple life with his wife and children in his hometown. In order to increase income and let the children live a better life, Master Zheng entered a logistics company to start the driver. In 2009, Master Zheng chose to leave the logistics company that had been in business for more than ten years and purchased the first truck in his life. Master Zheng introduced that the car was powered by the Dongfeng Cummins L-series engine . In the actual transportation process, this engine performed well and basically did not let him fall off the chain on the road. In 2015, he considered replacing the old car that was in use at the time and observed that many trucks were not satisfied. At the Shanghai Auto Show, the Dongfeng Tianlong flagship entered his line of sight. The Dongfeng Cummins ISZ13-liter engine was used to make Master Zheng fascinated. In 2016, Dongfeng Tianlong's flagship became the best partner of Master Zheng. This car is the fourth one he bought after 2009. Three of the four vehicles are powered by Dongfeng Cummins engines. After a few years of use, he is still very reliant on the quality and performance of Dongfeng Cummins engines, so he is determined to buy this car. At that time, the 13-liter engine just emerged in the market, and there were not many models equipped with a 13-liter engine. And Master Zheng had opened an imported car before, which required high performance for the vehicle. The reason for choosing Dongfeng Tianlong flagship is that the car is equipped with the Dongfeng Cummins ISZ 13-liter engine. Zheng Shifu believes that the future will be the era of large displacement and high-powered models. Today, two years later, it seems that Master Zheng’s choice was wise. The Dongfeng Tianlong flagship of the 480-horsepower Dongfeng Cummins ISZ 13-liter engine has a maximum engine torque of 2330 N.m and a speed of 1550 N.m at 800 rpm. It has the advantages of low speed, high torque and good acceleration performance. Driving this car, a strong push back feeling, suddenly let Master Zheng find the feeling of opening the imported car. The power is just one aspect that Zheng Zheng praised, and the fuel consumption exceeded expectations. Master Zheng showed the fuel consumption of a recent single cargo, which was transported from Zibo City in Shandong Province to Tianchang City in Anhui Province. In order to save high-speed high-speed fees, Master Zheng chose high-speed, national roads and provincial roads. A variety of working conditions, 480 horsepower Dongfeng Cummins ISZ13 liter engine can easily deal with, a little oil, the engine's dynamic response will follow. Running 637 kilometers, the meter showed a fuel consumption of 25.8 liters per 100 kilometers. Although the displacement is large, the fuel consumption is very low. This is because the common working condition speed range of the high-powered tractor is 1000 rpm-1400 rpm, and the Dongfeng Cummins technical team has optimized the fuel consumption curve for this speed range, and the optimized product. Fuel economy is 2-3% better than other products. Moreover, the ISZ engine uses an ultra-high pressure fuel injection system with a fuel injection pressure of up to 2,400 bar, more complete fuel atomization and lower fuel consumption. Dongfeng Cummins ISZ type engine has 520, 560 horsepower to choose from, the maximum torque can reach 2575N.m! This engine's B10 engine life is up to 1.6 million kilometers, with reliability, high durability and so on. In the usual transportation, the engine of this car is stable. In addition to the regular maintenance, basically no need to worry about Master Zheng. Master Zheng smiled and said: "The engine is the heart of the truck. The quality of the heart is directly related to the operation of the vehicle. Now it seems that you have chosen Dongfeng Cummins and you have chosen the right one." After a minute of hard work, Master Zheng has already built a house in his hometown by running freight, and solved the housing problem of his family. Nowadays, the eldest son is about to become a family, and his second son has excellent academic performance. Master Zheng is full of happiness and satisfaction in life. He candidly said: "Although I am tired, but let my family live a happy life is the greatest affirmation of myself."
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Master Zheng is equipped with Dongfeng Cummins' Tianlong flagship 
Dongfeng Cummins version of Tianlong flagship carrying goods 
100-kilometer fuel consumption performance of Dongfeng Cummins engine 
Master Zheng is cleaning his car.
Why do the old drivers of the 26-year-old driving car love the Dongfeng Cummins engine in the past 9 years?
Master Zheng of Jiangsu is an old driver with 26 years of driving experience. He can't remember how many roads he ran, but he talked about the Dongfeng Cummins engine that accompanied him all the way.