Well that is a tough question. I think it and the gas engine would be banned entirely if the environmentalists had their way. Nothing is environmentally friendly to. What comes to mind when you think of a diesel engine? Dieselgate? Rumbling big rigs spewing twin plumes of black smoke? Clattering old sedans that can't. Diesel engine efficiency is greater than a regular gasoline engine, but they never In the future, we are likely to see many more diesel engines on the road.
about Diesel? What you do think
Print "If diesel engines are more efficient why do most cars have gasoline engines? Can a car get miles per gallon? Could salt water fuel cars? If diesel engines are more efficient why do most cars have gasoline engines? Diesel Engines Despite being more efficient, diesel Engines are more expensive and produce more smoke than gasoline engines. See more diesel engine pictures. Diesel engines, because they have much higher compression ratios Diesel engines also tend to be more expensive.
Diesel engines, because of the weight and compression ratio, tend to have lower maximum RPM ranges than gasoline engines see Question for details. This makes diesel engines high torque rather than high horsepower, and that tends to make diesel cars slow in terms of acceleration. Diesel engines must be fuel injected, and in the past fuel injection was expensive and less reliable.
Diesel engines tend to produce more smoke and "smell funny. Diesel engines are much noisier and tend to vibrate. Diesel fuel is less readily available than gasoline. Nor is it easy to persuade drivers to switch. Many motorists are understandably angry that they were encouraged to invest in diesel engines but are now expected to face clean air zones, pollution charges and other restrictions.
Many feel that they are, in effect, being punished for what they were told was the smart, responsible choice. The UK government is keenly aware of the hypocrisy. The government must publish updated clean air plans by 24 April, but the prime minister, Theresa May, has indicated she does not want to punish existing diesel drivers.
While national governments wring their hands, it is cities that are taking the lead. In Germany, Berlin has already banned the oldest, highest-polluting diesel cars from its centre, while Munich is developing a clean air ban that will bring in some form of diesel ban in The Spanish capital, Madrid, has now introduced a system to halve the number of cars on the roads during smog outbreaks, based on odd or even number plates on alternate days; various other cities have experimented with similar trials.
In January, Oslo city council introduced a ban on diesel cars for the first time, halting their use completely for one day during a high pollution alert. The cities that have moved boldest have been the ones least likely to get too concerned about the fact that motorists, having been told one thing, are now being told another.
Some have worried this could lead to a damaging kind of cynicism — a more skeptical attitude toward the latest environmental research. People are well aware of the health implications now. Paris has been typically one of the more aggressive cities. Under mayor Anne Hidalgo, it introduced a system of coloured stickers to classify cars types and emission levels. Any diesel-run car made before will not be allowed on the roads inside the French capital.
Diesel cars built between and could soon be subject to tighter restrictions, as the mayor tries to phase out diesel entirely by Some French drivers are unhappy. A national campaign group, 40 Million Motorists, says the new system is unfair to poorer diesel drivers who cannot afford to buy a new cleaner car. Romain Lacombe, founder of Plume Labs , a Paris-based organisation that monitors air quality around the world, is not persuaded by their argument.
People are beginning to realise they are the first victim of their own vehicle. The black cabs are, in some ways, a litmus test of whether diesel is on its way out.
Many of the cabs use diesel, and drivers had initially complained about clean-air restrictions. Hong Kong has introduced subsidies to help phase out older diesel vehicles.
Later this year Seoul will ban all diesels made before from a city-centre low emission zone. The mayor has also pledged to invest more in the public transport system and cycling lanes, and persuaded delivery companies to use their diesel trucks at night to reduce daytime emissions. Will this work in a city where drivers are famously unruly? Mancera points to the scheme called Hoy No Circula No Driving Today , which forbade the worst-polluting vehicles from being on the roads one day a week; the rules have since been tightened to include a Saturday daytime ban for the worst polluters.
Some people support it, but another part of the population get really irritated by it. But nevertheless, he says drivers will get used to the diesel ban the way they did to Hoy No Circula. Worldwide, polls suggest citizens of some big cities are beginning to put clean air before convenience. This is probably how the death of diesel will come about — not through regulation, but through consumer disgust.
Many auto experts expect the global sales dip that followed Dieselgate to continue, as consumers turn up their nose and manufacturers correspondingly invest less in new models. Are car buyers entitled to have any confidence at all in buying diesel, or do we need to get rid of it altogether?
Unfortunately it is difficult to determine precisely how the latest breed of diesel cars compare with petrol ones, pollution-wise.
Since the Volkswagen scandal, no one has a great deal of faith in emission testing done in the laboratory. He points to a recent dip in diesel car sales in the UK. If smog-choked cities want the shift away from diesels to happen as quickly as possible, they will need the help of regulators — and also overcome the indifference of national governments.
Oslo still has to convince the Norwegian transport ministry to approve its road toll hikes. Mancera will have to persuade the national government to replace the fleet of federally controlled diesel buses that chunter into Mexico City each day. Yet the prize for hastening the decline of diesel could be huge — not least because, with so many big climate battles ahead of us, it would demonstrate that we and our political leaders can fix crises when science identifies them.
Will the diesel car you are driving be worthless in five years’ time?
We are being very shortsighted in Europe by focusing on diesel. I do not see a real difference anymore, except where the electricity is generated from a fuel. “The stock of [diesel] vehicles will take time to be phased out, but I only see momentum building to move away from diesel,” says Lacombe. Sales are falling. Older cars are facing bans. Next week's budget could see taxes slapped on. We explore the future for the owners of these.