Turtle n Peeps wrote:
4x4ord wrote:
Tougher emission standards
With the new DI turbocharged gasoline engine technology yielding incredible power and efficiency working in favor of the gasoline engine's future and the difficulties the diesel faces in meeting tougher emission standards I am beginning to wonder whether the diesel will survive.
With 30% better mileage Diesel will be around forever. Most people have no idea how much fuel a turbocharged high power gasoline can burn in a high HP demand situation. Or even a high HP N/A engine for that matter. The car I drive puts out around 750 HP to the wheels and gets around 1/2 mile per gallon on straight gasoline at WOT. :E It doesn't matter if the engine is turbocharged or not. If you need that amount of HP the engine will use the corresponding amount of gasoline. In fact, turbocharged engines are worse on fuel power for power.
HP for HP, a gasoline engine will burn about 30% more fuel than a diesel. That's a BUNCH! Most of that has to do with the type of fuel burnt instead of the design of the engine. When a fuel has a lot more energy content per gallon (BTU's) that is a BIG advantage. If you want to really burn a bunch of fuel just fill your TV up with E85 and see what happens! :E You'll be in for a rude awakening! :B
Diesel has about 12% more energy, by volume, than gasoline. By unit weight gasoline actually contains more energy than diesel does. When you consider the lost diesel fuel burnt in the DPF and the cost of eurea the diesel is loosing its advantage. Gasoline engines, on the other hand, are gaining efficiency with technology such as DI and higher cylinder pressures.
