What are the differences between diesel trucks and gasoline trucks?

[VanBrielle]

The differences between diesel trucks and gasoline trucks are: 1. Ignition method: Gasoline engines rely on spark plugs to ignite the compressed air-fuel mixture, while diesel vehicles compress the diesel-air mixture to reach the fuel's ignition point, causing spontaneous combustion. 2. Compression ratio: Gasoline engines use spark ignition, whereas diesel vehicles use compression ignition. Generally, diesel trucks have a compression ratio of 15-18, while gasoline trucks have a ratio of 8-11. Gasoline engines have a relatively lower compression ratio, resulting in smoother operation. 3. Material differences: Due to their higher compression ratio, diesel trucks use heavier steel materials, making them bulkier. In contrast, gasoline trucks typically use aluminum alloys, which are more compact, lightweight, and allow for faster rotation speeds. As a result, gasoline engines can achieve higher RPMs, up to 5500-7000 RPM, while diesel trucks generally operate around 4000 RPM.