Quote:
Originally Posted by po-po 5.0
Diesel is NOT the answer to every economy and emissions problem. Remember folks: diesel fuel is a BYPRODUCT of refining gasoline. If everyone started driving diesel vehicles diesel prices would go through the roof! A 42 gallon barrel of oil produces 20 gallons of gasoline and only 9 barrels of diesel. You really can't just change this ratio at will. The absurd diesel prices from the summer of '08 should tell you what happens when people stop buying gasoline: truckers and cargo ships still have to buy diesel so the prices skyrocket!
Technologies like cylinder deactivation and gasoline direct injection are MUCH better investments than diesel cars.
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Diesel is a product of refining CRUDE oil into many fractions.
You are wrong about not being able to modify what the ratios are.The refineries have been modifying the ratio for many years thru hydro-cracking to name just one process.
The cost of diesel fuel went up do to the requirement of ultra low sulfer diesel
and due to massive speculation of ALL commodity markets...(even rice).
Diesel is more efficient than gasoline for TWO significant reasons. The first reason is that diesel fuel has 10 percent more energy. The second and most significant reason is that diesel can be used up to 30 percent leaner than gasoline.
There is NO advantage to cylinder deactivation that cannot be applied to diesels. The ONLY advantage to a gasoline engine is that you dont have to build the engine as sturdy.