|DIESEL CARS: Diesel vehicles may be making a comeback. Diesel engines are more powerful and fuel-efficient than similar-sized gasoline/petrol engines (about 30-35% more fuel efficient). Plus, today's diesel vehicles are much improved over diesels of the past. Since diesel cars aren't really marketed in the U.S., below is a list of the top 25 fuel efficient cars in Europe. Notice they all but one run on diesel. For a list of diesel cars sold in America|
Small Cars Diesel Cars Hybrid Cars Conclusion
|Top Fuel Efficient Cars in Europe|
|Model||Description||Transmission||Fuel Type||MPG (combined)|
|TOYOTA||Aygo||1.4 D-4D 3 & 5 door||5MT||Diesel||68.9|
|RENAULT||Clio||1.5 dCi 80 (C/BB08EF)||M5||Diesel||67.3|
|FIAT||New Panda||1.3 16v MultiJet||M5||Diesel||65.7|
Only gas electric hybrid in top 25.
|Prius||1.5 VVT-i Hybrid||E-CVT||Petrol Hybrid||65.7|
|VAUXHALL||Corsa, MY2005||1.3CDTi 16v 5 Door Hatchback||MTA5||Diesel||65.6|
|PEUGEOT||206||1.4 HDi (70 bhp)||M5||Diesel||65.6|
|VAUXHALL||Corsa, MY2006||1.3CDTi 16v 3 Door Hatchback||MTA5||Diesel||65.6|
|VAUXHALL||Corsa, MY2005||1.3CDTi 16v 3 Door Hatchback||MTA5||Diesel||64.2|
|FORD||Fiesta Pre-2006 Model Year||1.4 Duratorq TDCi||M5||Diesel||G4.2|
|VAUXHALL||Corsa, MY2006||1.3CDTi 16v 5 Door Hatchback||M5||Diesel||64.2|
|RENAULT||Clio MY 2006||1.5 dCi 86||M5||Diesel||64.2|
|FORD||Fusion Pre-2006 Model Year||1.4 Duratorq TDCi||M5||Diesel||64.2|
|AUDI||A2 Standard||1.4 TDI (90 PS)||M5||Diesel||64.2|
|VOLKSWAGEN||Lupo||1.7 (60 PS)||M5||Diesel||64.2|
|AUDI||A2 Sport||1.4 TDI (90 PS)||M5||Diesel||64.2|
|FORD||Fiesta 2006 Model Year Onwards||1.6 Duratorq TDCi||M5||Diesel||64.2|
|AUDI||A2 SE||1.4 TDI (90 PS)||M5||Diesel||64.2|
|SMART||forfour||1.5Td 95 bhp (175 tyres)||S/A6||Diesel||64.2|
|VAUXHALL||Corsa, MY2005||1.3CDTi 16v 5 Door Hatchback ECO||M5||Diesel||64.2|
|VAUXHALL||Corsa, MY2005||1.3CDTi 16v 5 Door Hatchback||MTA5||Diesel||64.2|
Improved fuel injection and electronic engine control technologies have
New engine designs, along with noise- and vibration-damping technologies, have made them quieter and smoother. Old car brochures didn't come with emission ratings or any of the standard knowledge that comes with cars these days. The advancements made since then have made cars efficient in almost every way. Cold-weather starting has been improved also.
Today's diesels must meet the same emissions standards as gasoline vehicles, and advances in engine technologies, low-sulfur diesel fuel, and improved exhaust treatment have made this possible.
Although emissions of particulates and smog-forming nitrogen oxides (NOx) are still relatively high, new "clean" diesel fuels, such as low-sulfur diesel and biodiesel, and advances in emission control technologies will reduce these pollutants also.
The big problem is that there are very few diesels sold in the U.S. None of the big 3 automakers has a diesel, unless you want a truck. Right now, (June 2006) your only source would be Audi, Volkswagen, Mercedes. Europe has already joined the diesel bandwagon, in 2005, diesel cars accounted for over 50% of all new car purchases in Europe. Honda, which already sells diesel engine vehicles in Europe, will install the engine in vehicles for the Japanese market as well as the United States.
Low-sulfur diesel fuel will begin replacing conventional diesel starting in 2006. The new fuel will contain 97% less sulfur than conventional diesel—sulfur will be reduced from 500 parts per million (ppm) to 15 ppm.
Low-sulfur diesel fuel is cleaner-burning, producing less particulate emissions in both older and new engines.
It will also allow the use of improved exhaust treatment devices to reduce emissions of particulates and smog-forming nitrogen oxides (NOx). These devices can be "poisoned" by the sulfur in conventional diesel fuel.
Biodiesel is a form of diesel fuel that can be manufactured from vegetable oils, animal fats, or recycled restaurant greases. It is safe, biodegradable, and produces less air pollutants than regular diesel.
Biodiesel can be used in its pure form (B100) or blended with petroleum diesel. Lower-level biodiesel blends—up to 20% biodiesel—can be used safely in most diesel engines. Higher blends may also be used in engines built since 1992-94 with little or no modification. (Note: Always consult with the original manufacturer and engine warranty statement before using biodiesel.)
Biodiesel has several advantages over petroleum diesel fuel, but there are also some challenges to using it, as shown in the table below.
(Portions From http://www.fueleconomy.gov)
Small Cars Diesel Cars Hybrid Cars Conclusion