There has been a call for reducing pollution and cutting down on fog in the U.S.
VW used illegal software to pass U.S. emissions tests.
The Cruze, made by chevrolet is the only alternative to the VW diesel. It, however, is a great deal more expensive than its gasoline version.
Pickup trucks, luxury sedans, and SUV’s made by Audi, BMW, Mercedes-Benz, and Porsche comprise the rest of the lines of diesel vehicles for the most part.
Mazda is the sole remaining car to enter the market for an affordable diesel car.
Jeff Hill of the Boston Consulting Group indicated that only, “…a sliver of the market” might be interested in diesel vehicles by the time they are available to the public in the form of small and mid-sized sedans. Others think the U.S. would be a good market for the cars. But the expenses of the project would be so exhorbitant and the regulations involved with getting the cars on the road would be so extensive that it made the project untenable.
U.S. regulatory agencies are much stricter than those over seas when it comes to smog and pollution control.
VW used a concept in which fuel-rich exhaust is forced into nitrogen oxide which is collected in a catalytic converter and reduces the nitrogen oxide to plain nitrogen. This system was inadequate for the American market.
German and American automakers used a process whereby an ammonia-rich urea solution is injected into the exhaust system, mixing with the exhaust in a catalytic converter yielding nitrogen and oxygen.
With this system the car needs to be serviced every 10,000 miles and are programmed not to start after they are parked.
Mazda appears to have resolved the issue by the re-circulation of the exhaust into the engine which lower the ignition temperature of the engine.
The undertaking has taken several years, but an answer is on the way. Engineers are hard at work solving issues that can prevent the diesels from being a strong addition to our automobile force.
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