Originally Posted By: antiqueshell
Not lack of interest, it is likely the domestic oil and car makers lobbying to prevent small, high mileage cars from becoming very attractive because BOTH cut into the profits...
Nice conspiracy theory, but it doesn't hold up. There are two simple, uncomplicated reasons why you don't see many diesels in the US:
1)
Gas is cheap in the US. Diesels are popular in parts of Europe partially because some of their governments use tax policy to favor diesel over gasoline. That, combined with higher taxes on fuel in general and diesel's better fuel-efficiency, governments force buyers into making the economic choice of turning to diesels. Fuel in the US is roughly between $3 to $4 per gallon (in Canada about $5). In Europe it's closer to $7; that makes fuel expenditures a much more significant item on most families' budgets.
The UK is one of the significant exceptions. There, gasoline is
cheaper than diesel. The reason is that the government is trying to push people to away from diesel and to propane, called "LPG", or "gas"; LPG is half the price of petrol.
http://www.drive-alive.co.uk/fuel_prices_europe.html
2)
NOx abatement is expensive in the US. Because of EPA regulations restricting nitric oxide emissions, certifying a diesel for NOx in the US is time-consuming and expensive, especially given that you now normally need a urea-injection system to be able to meet the new regs. In order to make the hassle and expense worthwhile, you need sufficient sales volume. Remember that the manufacturers need to spend the money up-front, just like with anything else they do, and hope the buyers like what's offered. If an insufficient number of buyers opt for the diesel, manufacturers lose money on the deal. So, they don't bother with the risk.