So basically, from what I've read, here is the Cliff note version on the New Diesel Fuel...
1. Not everybody is going to be required to carry and sell the new mandated fuel until 2010 except for Cali which is already done as of June of 06 * Although ULSD fuel will be the dominant highway diesel fuel produced, EPA does not require service stations and truck stops to sell ULSD fuel. Therefore, it is possible that ULSD fuel might not be available initially at every service station or truck stop and that a diesel retailer may choose to sell Low Sulfur Diesel fuel instead of ULSD fuel. *
2. I can't use Low Sulpher Diesel ( currently available everywhere) in the 2007 model Diesels without voiding the engine warranty and resulting in "Civil Penalties". *Diesel-powered engines for 2007 and later model year highway vehicles are designed to operate only with ULSD fuel. Improper fuel use will reduce the efficiency and durability of engines, permanently damage advanced emissions control systems, reduce fuel economy and possibly prevent the vehicles from running at all.* Manufacturer warranties are likely to be voided by improper fuel use. Additionally, burning Low Sulfur Diesel fuel in 2007 and later model year diesel-powered cars, trucks and buses is illegal and punishable with civil penalties.*
3. The new fuel is going to cost more but nobody can tell me how much. *ULSD fuel costs more to refine and distribute than Low Sulfur Diesel fuel. No one can predict with certainty the price of ULSD fuel at the pump *
4. I can use the new Diesel in 2006 and older models but the fuel mileage will decrease. *Fuel economy may be reduced slightly because the process that removes sulfur also can reduce the energy content of the fuel.*
5. When switching from the old diesel to the new diesel it will cause fuel system leaks and plugging as it descales the fuel system in the vehicle. *the introduction of ULSD fuel to older vehicles may affect fuel system components or loosen deposits in fuel tanks. As part of a good maintenance program, owners and operators of existing cars, trucks and buses are encouraged to monitor their diesel-powered vehicles closely for potential fuel system leaks or premature fuel filter plugging during the change-over to ULSD fuel. *
6. All this was done to lower vehicle emissions by the year 2030 resulting in *significantly improved air quality*.
7. I'm glad I found this out now. Thanks to the Tree Huggers and the Gov't I now know I will NOT be purchasing a Diesel powered vehicle. Higher Fuel prices, Less Power and Lower fuel mileage. Nice work