Difference between diesel and gasoline cars

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Difference between diesel and gasoline cars

Diesel cars are better or gasoline cars are better, what is the difference between them before. There are some friends, who feel that diesel cars are powerful, low fuel consumption, home and off-road can be taken care of, saving money and personality, but some people point out that diesel cars are noisy, difficult to refuel, slow acceleration and other problems. But who is superior and who is inferior before them? Here we talk about the difference between diesel cars and gasoline cars from five aspects together.

Fuel consumption: diesel cars consume less fuel than gasoline cars

As the saying goes, it's easy to buy a car, it's hard to keep a car, and the price of gas has always been a thorn in the side of the car owner's heart. Speaking of fuel consumption should first understand the working principle of diesel engines and gasoline engines. Ordinary gasoline engine is in the air intake inhalation of oil and gas mixture, these oil and gas mixture after compression, through the spark plug ignition, so as to produce explosive force. The diesel engine is very different, diesel engines use high-pressure injectors to spray diesel fuel directly into the cylinder atomization, and then after compression, to reach the deflagration point after their own combustion occurs, it does not need a spark plug ignition.

Compared with gasoline, diesel power, higher ignition point, less volatile, because of these characteristics, diesel engine than gasoline engine fuel economy is 30% higher. That is to say the same model, in the same driving conditions, assuming that the gasoline car's fuel consumption is 10L, then the diesel car's fuel consumption is about 7L. So diesel cars are more fuel efficient than gasoline cars.

Acceleration: gasoline cars are better than diesel cars

If you have driven a diesel car, you must know that the starting moment is great and you feel powerful. However, if you want to overtake on the road, you always feel that when you step on the gas, the speed does not increase quickly, and you feel that it is slowly and leisurely “leisurely” up. Why do I feel this way? This is also related to the characteristics of diesel engines.

The working principle of diesel engine is not ignition, but through the compression of combustible gas mixture, when it reaches the ignition point to let it self-combustion. Then this process is slower than the ignition of the gasoline engine, the conversion of energy into speed, but also correspondingly slower than the gasoline engine. Therefore, the acceleration of a diesel car is not comparable to that of a gasoline car under the same circumstances.

Noise: Diesel cars are noisier than gasoline cars.

Due to the different mechanical working principles of gasoline and diesel engines, the compression-ignition ignition of diesel cars makes diesel cars have to be compressed to a certain extent in order to send out the power, so the outbreak of sound will be relatively large. In the actual driving, it can be clearly felt that the diesel car engine noise is greater than the gasoline car.

However, with the evolution of the current technology, many diesel cars by improving the injection method, etc., effectively suppress the noise problem of diesel cars. Another netizen said, driving a diesel car on the highway, after reaching a certain speed, diesel and gasoline engine noise comparison is not obvious, more noise will come from the tire noise.

Ease of refueling: gasoline car refueling more convenient

In the past two years, many southern provinces suffered a “diesel shortage”, more than 2,000 private gas stations were shut down due to lack of fuel. Even many places appear outside the gas station trucks lined up long lines waiting for oil, just like a diesel “a drop hard to find” scene. Many want to buy a diesel car friends have therefore put off the idea of turning to the ranks of gasoline cars.

Power: diesel cars are stronger than gasoline cars

Power, due to the high ignition point of diesel fuel, power and other characteristics, low-speed torque diesel engine power is often stronger than the power of gasoline engines. This is why large trucks, bulldozers and other large machinery, although the acceleration is slow, but the force is great. In this respect, it is unmatched by gasoline engines. The power is reflected in the advantage of diesel cars in that when the car is in the suburbs, mountains and other places where off-roading is required, the diesel car appears to be more of a fish out of water. Whereas a gasoline car in the same situation is somewhat less powerful.

There is no single answer to the question of whether a diesel or a gasoline car is better. When you buy a diesel car, you save money for sure, but the problems it brings in terms of noise, starting, refueling, etc. are also unavoidable. The pros and cons of these two types of cars, only the owners themselves to weigh. Finally, remind the owners of friends, if you buy a diesel car,