The car industry has relied since the beginning of the vehicles' invention on two main types of engines, which have gone through many stages and developments that have made them as they are today from various features, namely gasoline and diesel engines, as the first small gasoline engine can be traced back to the year 1882AD, to develop Later it becomes the way it is today. As for diesel engines, its invention dates back to 1892. The aim of its invention was to find an engine with a higher efficiency than the petrol engine. The difference between diesel and gasoline engines Diesel engines are similar to gasoline engines in the way they work because the main idea in the mechanism of work is to burn fuel in the engine in order to produce kinetic energy, while the differences are many, but the most important of them can be summed up as follows: The gasoline engine mixes fuel with air, then compresses it, and affects it with an electric spark in order to ignite it, while the diesel engine is based on the principle of its work on compressing air, and then injecting it with fuel, because the air increases its temperature when it is compressed, and this heat results in ignition Fuel, this process is called Direct Injection. The gasoline engine is powered by Gasoline, while diesel is called diesel, and it has the highest density of gasoline. The diesel engine is larger and more powerful when compared to the gasoline engine, so it is used in heavy transport trucks, while the gasoline engine is characterized by its small size and use of purer fuel quality, and can reach a higher speed in a less time than diesel engines. The diesel engine has the advantage that the operating cost is lower than that of the gasoline engine, as the diesel engine uses a solar energy as a fuel, which is generally cheap because it contains a higher percentage of impurities than gasoline, and it has a higher density, which prompted many owners of international car companies to work on production Copies of standard car models powered by diesel engines, to run on cheap fuel. Gasoline engines are easy to maintain compared to diesel engines. Gasoline engine noise is lower compared to diesel engine noise. Pollution increases at a slower rate in diesel engines with the increase in the life of the vehicle, while the gasoline engines increase the pollution resulting from it at high rates the higher the life of the vehicle. It is worth noting that the reason why gasoline cannot be used in diesel engines is because the diesel automatically burns with air pressure, while gasoline requires an electric spark to ignite so the diesel engine cannot operate with gasolin
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