Which has lower fuel consumption, Cummins engine or Dewei engine?
2 Answers
Among Cummins engine and Dewei engine, the Dewei engine has relatively lower fuel consumption. Below is relevant information about engines: 1. Introduction: An engine is a machine capable of converting non-mechanical energy into mechanical energy. 2. Classification: Includes internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. 3. External combustion engine: An external combustion engine means that the fuel burns outside the engine. 4. Internal combustion engine: An internal combustion engine, or reciprocating piston engine, differs most from an external combustion engine in that the fuel burns inside it. There are many types of internal combustion engines, with common gasoline and diesel engines being typical examples.
There's no absolute answer when it comes to fuel consumption. After repairing trucks for over a decade, I've found the key lies in compatibility. Cummins excels in lightweight design, delivering impressive fuel efficiency on 4.2-meter trucks on highways, achieving around 15 liters per 100km. However, Deutz's torque calibration is better suited for hill climbing with heavy loads, especially for 9.6-meter trucks in mountainous regions like Yunnan-Guizhou-Sichuan, where it actually consumes 3-5% less fuel than Cummins. My advice is to consider your primary route conditions: choose Cummins for refrigerated transport mostly on flat roads, but opt for Deutz if you frequently haul construction materials on national highway slopes. Also, never skimp on engine oil – using the wrong grade can easily increase fuel consumption by 10%.
