A diesel engine used to elicit a wince from people who associated diesels with engine noise, a not so pleasant smell, and blue smoke coming out of the tailpipe.  However, this is changing.  Diesel engines will soon elicit a positive response.

The new generation diesels are considered clean.  They use a very low sulfur diesel fuel that was made available in the United States in 2006.  It is predicted by experts that diesel sales are going to increase approximately 300% within 10 years.  One of the reasons for this is that diesel engines have around 20%-40% better fuel-efficiency than engines powered by gasoline.

The Clean Diesel Fuel Alliance claims that using ultra low sulfur fuel in these new and improved diesel engines will cause air quality to improve greatly.  The yearly reductions in emissions will be the same as taking away the pollution from over 90% of the buses and trucks today.  This is when the fleet of heavy-duty vehicles has been replaced by 2030.

It may take time to change perceptions about diesel engines, but people will begin to realize the benefits.  Not only will they make our air cleaner, they will save people at the gas pump.  However, as with any car, it is necessary to buy an auto warranty so you are covered in the case of failure.