Which is more fuel efficient, Tianlong 6*4 34 Renault engine or Jiefang J6 6*4 35?

Theoretically speaking, within a certain range, a heavy-duty car with stronger horsepower will save fuel, but the fuel consumption is related to many factors. Based on my personal experience, I can say that the 35-horsepower car of Jiefang J6 is definitely more fuel-efficient than the 34-horsepower car of Dongfeng Tianlong. Moreover, the technology of 6DL2-35E3 engine for J635 HP vehicle is very mature, and the accessories are cheaper than Renault's engine. At present, there is no doubt about the energy saving of the high-horsepower model of Xichai engine in domestic models!