There is no doubt about it. Diesel has over the years, endured a bad reputation compared to its immediate cousin, gasoline. This is unfortunate because much of what has contributed to the bad reputation are misconceptions. Truth is, diesel is just as good and efficient as gasoline. The current crop of diesel powered Porsche models actually demonstrate that it is possible to build a clean and efficient diesel engine without sacrificing performance.
Diesel Vs Gasoline
Both diesel and gasoline engines are internal combustion engines which are aptly referred to as ICEs. This means that the engine first mixes fuel with air as fuel flows into the engine. The mixture is then internally compressed inside engine cylinders. At some point, the fuel will ignite and drive pistons up and down. This will turn the crankshaft which is connected to transmission. Wheels will turn and the vehicle will move. As this happens, the pistons inside the cylinder will move up. This will push burnt gases out of the engine and expel it as smoke though the tailpipe as exhaust. Note that this cycle takes place several times each second as long as the engine is on.
It may have been okay to say that diesel is dirtier than gasoline a decade or two ago. That would be inaccurate and wrong today because of what technology has done in a bid to make diesel cleaner, safer and efficient. As a matter of act, diesel models now run cleaner than ever before. The sulphur content present in diesel years ago was responsible for thick black smoke and soot that was associated with diesel powered models. Sulphur has since been removed from diesel, making it safer. There is also the fact that Diesel Exhaust Fluid (DEF) makes diesel safer. It is a separate additive that comes in handy when it comes to lowering the nitric oxide and nitric dioxide concentration in diesel. These two oxides are responsible for air pollution. By mixing DEF with diesel, the oxides released become harmless.
It is hard to compare diesel and gasoline variables without mentioning a thing or two about the engine performance of these two types of fuel. Both diesel and gasoline engines are measured in terms of torque and horsepower. Torque is a measure of the engine’s twisting and turning on the driveline. Horsepower on the other hand refers to the measure of power. Huge amounts of both torque and horsepower are great. However, if you have lots of horsepower with just handful of torque, your car will be slow. That’s because it is torque that gets things going and moving. That explains why diesel engines are ideal for big trucks. They do not need so much torque. Diesel engines also do not rev up as high as gasoline engines do. They make less horsepower on average compared to gasoline engines. That is why sports cars prefer gasoline to diesel.
Point To Note
Many drivers love torque. Step on the gas pedal and a diesel powered Porsche, coupled with capable transmission will power just as well as a gasoline powered Porsche does. It all boils down to what you prefer. Remember too that diesel, with all the technological advancements now in the automotive industry, is just as good as gasoline.