[Big Dave]

The combination of making the price of diesel fuel nearly a buck a gallon higher, reducing engine efficiency to the point that diesels barely get any more MPG than gas pigs, and making the engines be sold at a huge premium for no quantiable benefit kills the diesel in the US. This forecloses any serious efforts to increase fleet MPG. You can play your little games with duct tape on your radiator inlets forever, but that will not be as effective as having an engine that is 25-50% more efficient.

VW Jettas with gas-pig engines struggled to get more than 25 MPG. Diesel (pre-Tier II) Jettas routinely got 40. With ULSD and Tier II, that effiency is just a memory.

Yeah. I've got it in for the EPA. They slew their dragon in the 80s but they keep wrecking the country to continue justifying their existence. They are wrecking my country and I despise them for that reason.