A: Yuchai engine and Yudong engine are both high-performance engines with good reliability and economy. But in terms of performance and economy, Yuchai engine is superior to Yudong engine.

First of all, Yuchai engine is superior to Yudong engine in engine power performance, with the maximum power of 1 10KW and the maximum torque of 310n m, while Yudong engine has the maximum power of 90KW and the maximum torque of 280n·m, so Yuchai engine is superior to Yudong engine in power performance.

In addition, the fuel consumption rate of Yuchai engine is lower than that of Yudong engine, and its fuel consumption per 100 kilometers can be reduced to 7.2-7.4 liters, while Yudong engine can reach 7.5-7.7 liters, which also makes Yuchai engine more economical.

In a word, Yuchai engine is superior to Yudong engine in performance and economy, so Yuchai engine is superior to Yudong engine.