Difference Between Diesel Engine and Gasoline Engine

The times continue to roll and developments in the automotive world keep accelerating. In the coming decades, the debate between diesel engines and gasoline engines will be overshadowed by a new trend that will emerge, namely electric vehicles. This is undeniable with the presence of Tesla, which has received a warm welcome in its home country, the United States.

Similarly, in Indonesia, the trend of electric cars is also starting to be sensed. In fact, if you go to Jakarta and drive an electric car, you can pass through areas that require odd-even plate regulations. This is because electric cars have different and environmentally friendly regulations.

This is very different from cars with diesel or gasoline engines; if you use a car with these engines, you still have to comply with the odd-even rules. You can be free from odd-even restrictions if your car's plate is yellow. Of course, this means your car is a public transport vehicle, such as a taxi.

Possibly, in the next ten years, you will see electric or hybrid cars on the roads more often than gasoline engines. This is evident from the seriousness of several car manufacturers that are also working on electric cars, such as BMW.

Regardless of the upcoming electric car trend, it is still relevant for you to know the differences between diesel engines and gasoline engines. The goal is to ensure you do not make the wrong choice of car that suits your daily needs. Here are some differences between diesel engines and gasoline engines.

Differences Between Diesel Engines and Gasoline Engines

Before discussing the differences between diesel engines and gasoline engines, it is good to map out what will be the points of difference between the two. There are several points discussed, namely: the type of fuel, intake phase, compression phase, compression ratio, and power phase.

Type of Fuel

From the perspective of fuel type, diesel engines are more flexible and can be replaced with alternative fuels. In contrast, gasoline engines must use gasoline only. Not only that, the difference between diesel engines and gasoline engines in terms of fuel type is in the degree of heat at which the fuel ignites.

For gasoline fuel, the ignition point is around 43 degrees Celsius. Meanwhile, for diesel engines, the ignition point is hotter, ranging from 52 to 96 degrees Celsius.

Intake Phase

In this phase, gasoline engines perform atomization by mixing the air drawn into the engine with a spray of fuel. Meanwhile, diesel engines only draw in pure air.

Compression Phase

After the intake phase, the next phase is the compression phase. In diesel engines, the air flowing from the valve is compressed, resulting in high pressure. In gasoline engines, a similar process occurs. The mixture of air and fuel is also flowed for compression. The difference lies in the pressure produced. For diesel engines, the pressure is higher compared to gasoline engines. The compression ratio for diesel engines is about 16:1, while for gasoline engines, it is only 10:1.

Power Phase

In this phase, gasoline engines use spark plugs to ignite the compressed mixture of air and gasoline. Meanwhile, diesel engines do not have spark plugs. The compressed air at high pressure is sprayed with a mist of fuel, which will then cause an explosion that pushes the piston down and generates power to turn the shaft.

Which is Better, Diesel Engine or Gasoline Engine?

There are many considerations regarding which is better, between diesel engines and gasoline engines. It depends on the aspect being considered. Here are some aspects that are taken into account when determining which is better between the two.

From an Environmental Perspective

Everyone hopes to be a cause for good. The same goes for this environmental issue. Gasoline engines are superior to diesel engines when viewed from an environmental perspective.

This is actually very easy to see. If you observe vehicles using diesel engines on the road, the smoke is certainly very disturbing because it is thick black. Although there is now bio-solar, the quality of gasoline is still better in terms of waste products or combustion residues.

From an Efficiency and Economic Perspective

Believe it or not, diesel engines excel in this regard. You can check the prices of diesel and gasoline at gas stations. Not only that, diesel engines are also better in terms of fuel efficiency.

So it is not surprising that heavy-duty vehicles use diesel engines; one of the reasons is economy. Moreover, heavy-duty vehicles are usually used in more extreme conditions compared to personal vehicles.

From a Durability Perspective

Everyone certainly wants to have a durable vehicle. Ideally, in 10 years, the vehicle should still be comfortable to use. Diesel engines are known to be more durable compared to gasoline engines if properly maintained. That is why on the roads, you often encounter trucks that look very worn but are still operational and can be used for long-distance travel.

From a Performance Perspective

If you are someone who likes speed, gasoline engines win. However, if you focus more on torque, then diesel engines win. For steep roads that require endurance in climbing hills, diesel engines can be relied upon.

Diesel engines are very suitable for those who often travel in rural areas. Meanwhile, gasoline engines are more suitable for those living in urban areas.

From a Safety Perspective

Diesel engines are considered safer compared to gasoline engines. If gasoline engines require electrical voltage to trigger combustion, diesel engines do not need it. Additionally, diesel engines do not interfere with radio waves. Therefore, diesel engines are used by several high-security vehicles, such as airplanes and ships.

From a Vibration Perspective

Cars with diesel engines are usually noisier due to the vibrations produced from the compression process and the conversion of fuel into power. In contrast, gasoline engines are smoother. However, some brands of diesel engines have managed to produce diesel engines with low noise levels. Thus, owners of diesel engine cars are not bothered by the noisy sound of the diesel engine while driving.

So, what is the conclusion? Which is better between diesel engines and gasoline engines? The answer is relative. It depends on your daily needs and the terrain you often traverse. If you only use the car in urban areas, then gasoline engines are more recommended. However, if you often adventure in villages or remote areas, then cars with diesel engines are recommended.

That is the difference between diesel engines and gasoline engines along with considerations from various aspects. Hopefully, with this explanation, you will find it easier to decide which type of engine car to buy.

Tips Sahabat