California has had low sulphur diesel for several years now. It is the only diesel available in the state for trucks and autos and as I recall caused a 5-10c increase in the "at the pump" price of our fuel. The lubricity issue is easily addressed with additives (which most of us use anyway) but the other byproduct is that it tends to cause some fuel system leaks, especially for older cars with somewhat dried out rubber hoses. In my case these were all easily fixed and I've had no problems since shortly after the mandated change. I don't know if the Federal standards are going to be different than the California standards are now but I'll bet they are close if not the same. All said and done I've not noticed a big difference since the new fuel was mandated (except price) and would welcome the federal change because when more refineries are producing low sulphur diesel it will likely help drive our prices down a bit.....or am I dreaming?

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LRG
1987 300D Turbo 175K
2006 Toyota Prius, efficent but no soul
1985 300 TDT(130K miles of trouble free motoring)now sold