Diesel engines are incredibly durable and need less routine maintenance since tuneups and spark plug changes aren't needed. This means that for the same amount of emissions, we can now operate 10 modern school or inner city buses for each single 1970's bus in operation. The technical breakthroughs of the past few years have gradually increased the sociability of diesel engines, another important, yet often unspoken modern requirement. Indeed, diesels have become so clean and efficient that they may even help propel the next generation of non-gas vehicles. Modern diesel engines have come of age.
New diesels are quicker, quieter, cleaner and fuel efficient.
Besides being fuel-efficient, today's diesels are 90 percent cleaner than models from 10 years ago. The reason is technology. In Europe, diesels already have about a third of the overall market, and the percentage is rising. Already in France, the Benelux countries and Austria, more than half the cars use diesels. They use less fuel.