Quote:
Originally Posted by 44 mpg by 2010
You are correct that it is "VERY hard, and expensive, to certify a diesel in this country", however at least five (5) "foreign" auto companies will have suceeded by 2010.
Interestingly, the assessment of demand for diesel passenger vehicles may have missed a critical point, there are about 1 million diesel "light vehicles" sold annually in the US as vans and trucks.
Is it reasonable to assume that these "diesel fans" would demand gasoline engines for their passenger transport applications ... IF ... 45 mpg (or better) combined average diesel passenger vehicles were available?
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Almost all of these 1 million vehicles are trucks, which is where diesels offer it's best benefit. LPVs ( light passenger vehicles ) are a tiny tiny blip in NA.
GM and Ford and Toyota all have announced that for LPVs their strategy is based on improving traditional gasser technology and hybrids. Diesels are out for LPVs. The reason is that the combination of improving gasser technology then adding a hybrid technology can improve fuel economy by 40+% at no additional cost in fuel.
The additional cost of the hybrids is roughly equal to the addtional cost of the diesel engine
plus the cost of the additional emissions equipment required for diesels. But then the hybrids don't need premium-priced diesel fuel. They do just fine with RUG.
Now if there was significant production of biodiesel from algae here in NA I'd be all over it in an instant. I think that this may be 10+ yrs away.