Advantages and disadvantages of a diesel engine

Posted in June 7th, 2011
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If a diesel engine is more efficient, why do most cars still have gasoline engines? The reality is that diesel engines have never had such an impact on as gasoline cars. In the past, the diesel had some impact on oil crisis periods, but even so, have certain disadvantages which have been improved over time.

  • Diesel engines tend to be more expensive than gasoline.
  • Due to its weight and compression ratio, typically have a lower RPM range than gasoline. This makes the diesel is slower in terms of acceleration.
  • Diesel engines have the fuel to be injected, and in the past this type injectors were more expensive and less reliable.
  • Diesel engines tend to produce more fumes and odors.
  • The diesel is more difficult to start in cold temperatures.
  • Diesel engines make more noise and tend to vibrate.

One or two disadvantages could be accepted, but a number of disadvantages was that many people opt for petrol cars.However, the two things that play in favor of diesel are increased fuel economy and longer engine life. Both advantages mean, if we talk about the life of the engine, eventually saving money with a diesel.

However, we must also take into account the initial costs. You must have a diesel engine for a certain time before the fuel exceeds the added cost to buy the car. This equation works best in a big diesel truck is a 500 miles a day, but it is not nearly as beneficial in a car.

As mentioned, the list of disadvantages are historical, and today many of them have been resolved. Many new diesel engines are eliminating these disadvantages such as smoke, noise, vibration and costs. Even the speed and power are coming to a position close to the gasoline.