What are the advantages of diesel cars? ​

In the automotive market, although diesel cars are not as popular as gasoline cars, they have still gained the favor of many users due to their unique technical characteristics. Their advantages mainly focus on the following key aspects:

1、 Outstanding fuel economy and lower operating costs

Diesel engines use a compression ignition working principle, without the need for spark plugs for ignition, and diesel has an energy density about 10% -15% higher than gasoline, which makes the fuel efficiency of diesel cars significantly better than gasoline cars. Normally, diesel cars with the same displacement and driving conditions have a fuel consumption of 20% -30% lower per 100 kilometers than gasoline cars. Taking a common household SUV as an example, the gasoline version has a fuel consumption of about 8-10L per 100 kilometers, while the diesel version only requires 6-7L. In addition, the retail price of diesel is often 0.5-1 yuan/liter lower than gasoline. Over the long term, diesel vehicles can save users a considerable amount of fuel expenses, especially suitable for high-frequency commuting and long-distance driving users.

2、 Low speed and high torque, strong practicality of power

The compression ratio of diesel engines is higher (usually between 16:1-22:1, much higher than the 8:1-12:1 of gasoline cars), which allows them to output strong torque in the low-speed range (usually 1500-2500 revolutions per minute). This "low turn, high twist" characteristic allows diesel vehicles to perform more calmly when starting, climbing, and carrying loads - such as driving a diesel pickup truck to transport goods, or driving a diesel SUV on mountainous roads, without the need to frequently rev up, to obtain sufficient power, not only driving more lightly, but also reducing excessive engine loss, balancing power and practicality.

3、 The engine structure is durable and has a longer lifespan

To withstand higher compression ratios and working pressures, core components such as the cylinder block, piston, and crankshaft of diesel engines are typically made of stronger materials with higher structural strength. Meanwhile, the combustion characteristics of diesel are more stable, and the vibration and temperature control during engine operation are relatively smooth, reducing the wear rate of components. Data shows that the service life of high-quality diesel engines can generally reach over 500000 kilometers, and some commercial diesel vehicles can even exceed one million kilometers, while the service life of ordinary gasoline engines is mostly between 300000 and 400000 kilometers. For users who pursue long-term use value of vehicles, the durability of diesel vehicles is an important advantage.