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When I was going to Germany on business, I would get a diesel as a rental about 1/3 of the time.I'm just wondering, with all the hysteria and green drum beats about hybrids, if anyone has stopped to consider the energy costs and environmental impact of manufacturing of and eventually disposing of thousands of very large lithium ion batteries? As has been mentioned, small diesel technology is proven and very efficient, and has the potential to run biodiesel with no major engine or fuel storage or delivery changes to the vehicle.
I think it all really comes down to the stigma associated with diesels that people can't get around, that they're loud, smokey and underpowered, and it just isn't true of today's passenger car oriented diesels.
I'm just wondering, with all the hysteria and green drum beats about hybrids, if anyone has stopped to consider the energy costs and environmental impact of manufacturing of and eventually disposing of thousands of very large lithium ion batteries? As has been mentioned, small diesel technology is proven and very efficient, and has the potential to run biodiesel with no major engine or fuel storage or delivery changes to the vehicle.
I think it all really comes down to the stigma associated with diesels that people can't get around, that they're loud, smokey and underpowered, and it just isn't true of today's passenger car oriented diesels.
I wish that VW would import more of their TDI offerings stateside instead. That's what I'd be driving right now if I could find one that I liked in my price range...
I thought VW had announced a Diesel/electric hybrid several years back. I wonder what happened?
VW makes quite a few Diesel powered cars, they just don't sell many here. I think right now, at least in MA, you can only get a Jetta/TDI and the Toureg.
More so than the Hybrid, GM seems to be even bigger on the E85 "Flex-fuel" bandwagon. Wonderful. Once you find the fuel, it seems ok. Until you find out what you get for mileage on E85. I guess as a plus, you won't have your fuel lines freeze with E85. (Not that I've had that happen in a long time.)
I remember driving near a truck running biodiesel a few months ago...mmm, that french fry smell...
VW (and other manufacturers) would import more diesels if they could. EPA regs won't allow most diesel engines without significant performance robbing and price increasing air cleaners. If biodiesel were more available, it probably wouldn't be a problem.
In the end, though, reducing emmissions from consumer vehicles has a very small impact on overall greenhouse gas emmissions, so buying a hybrid is reall more about feeling good than doing good. According to a McKinsey report (http://e.mckinseyquarterly.com/W8RT015CEA689C83F4B27368225310), better insulation for buildings has a much, much greater (and cheaper) effect, and more efficient commercial fleets far outweighs consumer cars.
Hybrids have several disadvantages. The environmental impact of the batteries, the additional maintainance/service headaches. (I still have yet to deal with a significant crash with one of these. Given the conservative way that most Hybrids are driven, I'm figuring it will by a road rage incident where some angry yuppy in his Hummer tries to drive over the hybrid.)
The new diesel technology is much cleaner and delivers very good performance. I find mine actually runs better on a blend of up to 20% biodiesel than it does on straight "Dino" diesel. I can't run it richer until I replace the fuel lines and possibly the fuel pump, which I might eventually do.
I think you're right about the stigma of diesels. With Full electronic authority direct injection, you can have a clean engine that gives great performance and mileage. (Heck, I had a Diesel Rabbit for a company car back in the early '80's and it got over 50MPG on the highway.) Given that I get about 20 MPG out of a Full sized PU and up to 400HP, I'm sure they could easily make a sedan that drives nicely and gives you 50MPG on the highway.
Good poitns all around. I have yet to participate in an MVA call involving a hybrid, but I have read a couple incident reports. One of which included a 50 foot length of guard rail energized with enough current for a short time to kill or seriously injur anyone in contact with it. And that means there was probably enough to arc across nicely to a haligan or K12 without actually touching it. Scary.
Well, I don't know what is different, but Mercedes is offering a lot of diesels right now, and a few with very good performance. The latest iteration on their diesel design is called "Bluetec" if you happen to see that badge on the back of one. If Benz can do it, I'm damn sure VAG can do it
Bluetec is what the new VW's are going to have when they get here. They've actually stopped producing the TDI's this year and will be reintroduced next year with Bluetec as far as I know. Not sure why they needed to skip a year.