Benefits of Petrol and Diesel Cars


When buying a car, one has to make one of the critical decisions to pick between a petrol and diesel vehicle. Buyers always desire to get the best blend of functionality and satisfaction at affordable rates. However, sometimes it becomes difficult for the buyers to choose the best option as there is no simple answer to this debate. In this article, we have evaluated various advantages of both the diesel and petrol cars that would help you take a decision depending on your needs.

Benefits of Diesel Cars

In the past, diesel engines were primarily employed in commercial vehicles and large trucks. However, due to the latest technological advancements, a wide range of automobiles utilize diesel power today. For example automakers such as BMW, Audi, GM, and Mercedes-Benz are manufacturing diesel-powered cars in their lineups. Due to low taxes on the diesel fuel, diesel cars have been quite well-received in Europe. Besides, it has become more popular among British buyers since the UK’s 2001 decision to link Vehicle Excise Duty rates with the CO2 emissions. Below are the few advantages of diesel cars:

Better Fuel Economy

Diesel engines are known for better fuel economy as they produce more power from less fuel. The reason is that their higher compression rate makes these more fuel efficient than gasoline automobiles. The fuel consumption in diesel cars has become more efficient with the addition of cutting-edge high-pressure fuel-injection systems. Besides, users can also get higher output efficiency and the fuel economy with the inclusion of a turbocharger. They use more compression to heat the air leading to the higher temperature of the engine. The result is that diesel fuel produces more energy with less fuel consumption simultaneously. Consequently, gas mileage and travel duration can be significantly increased.

Diesel is No Longer Noisy or Unclean

Due to the advanced engine technology and ultra-low sulfur diesel fuel (ULSD), diesel cars do not make any noise. These are also becoming more eco-friendly as these do not discharge black smoke and produce lower levels of CO2. Currently, ULSD is replacing the traditional diesel fuel engine across the globe. It can reduce nitrogen compound emissions and vehicle particulate emissions by up to 50% and 90% respectively.

Lower Maintenance

Diesel engines require lower maintenance and have a longer lifespan. The absence of the spark-style ignition system decreased the maintenance expenses and potential electrical failures. They need compressed hot air to ignite the fuel that enhances the reliability of the diesel engine. Moreover, diesel engines are durable as these withstand higher temperatures and the time span between maintenance services tends to last longer.

Lower Fire Hazard

One of the significant advantages of the diesel is its ability to encompass lower fire hazard. During car collisions, the risks of fuel ignition are quite low due to its higher flash point. An instant spark is unlikely to ignite the diesel, but it can get ablaze under extended direct heat.

Greater Torque

Diesel engines have greater torque than other engines due to its high compression and slow fuel consumption. This is the reason behind the usage of diesel engines in trucks and trailers. Torque provides the extra power to accelerate and hauling heavy loads on a regular basis. For example, Audi's 3-liter TDI diesel engine generates 428 pound-feet of torque; whereas, 3-liter TFSI gasoline engine produces 325 pound-feet. Diesel may have a high price, but it is quite rich in energy. For instance, BMW 328d has better mileage and generates 180 horsepower as compared with the gasoline cars.

Benefits of Petrol Cars

Since the 19th century petrol engines have been used in automobiles, aircraft, motorcycles, and other portable engine-generators. It works on internal combustion with the spark-ignition mechanism that is specifically designed to run on gasoline (petrol). Previously, petrol engines were used in lorries, buses, and trucks before the use of diesel engines became widespread. For instance, petrol engines were used in Bedford M Series lorry, Bedford OB bus and railway locomotives (GE 57-ton- gas electric boxcab). Following are the few benefits of petrol cars:

Lower upfront Cost

Petrol cars have low upfront cost regarding emissions management technology and the requirements for equipment to endure higher torque. In fact, the addition of turbocharger and intercooler still make these cheaper in the car industry.

Turbo torque

Modern petrol engines are also benefiting with the addition of turbocharged torque to enhance vehicle performance across a broader rev range with higher BHP and constant power output through 1000–8000 RPMs. The lower physical mass of a petrol engine also serves as a higher power to weight ratio. Some people think that petrol cars are slower than diesel cars. However, a petrol car with the same engine size as of diesel engine will move faster than the diesel. Mostly diesel cars have turbo boosters that make them faster, but slapping a turbo on a petrol engine will make it faster than the diesel. That’s why racing cars have supercharged lightweight petrol engines.

Better Refinement

Petrol is more refined and goes easily through combustion also tends to start quite easily during cold conditions. Better refinement of petrol engines leads to smoother and progressive revving.  Petrol wins hands down due to the relaxed nature of drive, soft clutch, lesser gear shifts, and more power at lower RPMs useful in stop-go traffics.

Engine Work & Price

At low speed, the petrol engine has a small thrust. Its power increases as the speed increases and provides more ease and efficiency. Thus, it is highly convenient to use in the urban conditions during a stop-and-go ride. Petrol engines are in-expensive due to many low-priced units.  From a technological point of view, the petrol engine assembly process is more straightforward and efficient and tends to be slightly cheaper to buy and service.

Positive Environmental Impact

Petrol cars are significantly becoming eco-friendly by utilizing hybrid engines. In the near future, the use of sulfur-free petrol will enhance the positive impact of gasoline on the environment. Petrol cars are also equipped with good noise insulation and produce less vibration during ignition thereby mitigating noise pollution and improving the driving experience. Although CO2 emissions are higher, petrol cars produce a low amount of other hazardous emissions like nitrogen that may damage the ozone layer and greater susceptibility to respiratory diseases.