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Bob Lacovara
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re: Diesels challenge hybrids for efficiency, low emissions
Bob Lacovara   9/20/2010 7:44:03 PM
I drove a Citroen 1.2L Diesel in Spain more like 15 years ago. At the time, one of my other cars had a Chevy 350 cu in (that's about 5.7L for you kids). At first, I though I might as well get out and walk. But once I figured out that I couldn't shift it like an American sports car, the Citroen and I came to a pleasant understanding: it was a wonderful, if small, car. Bell hops at the hotels would ask me where I was from, how I liked the car, and usually, what I drove at home in the US. I would tell them that my engine at home was 5 times as large, and some would wonder at my Spanish: once, a fellow said "Chevy?" and I smiled yes... it was fun. I miss that car: it was well built, and I couldn't complain of the fuel economy. I wouldn't buy a hybrid: for one thing, I tend to tow a trailer once in a while, and my tastes run to an FJ Cruiser, but I'd certainly consider a large-enough vehicle with a Diesel powerplant.

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re: Diesels challenge hybrids for efficiency, low emissions
Mike99   9/17/2010 4:41:10 PM
I drive one of the Citroen babies (1.2L turbo-deisel) 5 years ago in Spain for several weeks over 4000Km; less than 4L/100km doing 120Km/hr. Experience: smooth, powerful, miserly like US automakers / customers don't have a clue. We don't get out enough nor realize the joke we are. Thanks for your article and quiet significant observation. ps: did you ever have to change one of those HEV batteries, do you know how often you have to in the car's life & related $, any idea of that environmental overall impact? Time to look at the numbers (all of them including 'electric vehicles'). I also converted/drove a Natural Gas conversion dual fuel minivan; a local after-market update shop on a Pontiac minivan. Technology easily applied ($2500) after mfg. and paid-for using a local sales-tax rebate, that is developed to production levels in Italy (over .5M NG vehicles in use). I can gas-up at home with a compressor appliance outside my garage. Engine life is extended with higher octane rating / cleaner burn. Gasoline is still there with a dash-mounted switch. It's out there, just get to it. Good hunting .. & travelling. Mike

Code Monkey
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re: Diesels challenge hybrids for efficiency, low emissions
Code Monkey   9/16/2010 3:29:25 PM
I think HEVs will benefit once solar has dropped in cost to the point that consumers have excess power and need a place to put it. I drive a Jetta TDI myself, powered by B100 biodiesel produced from recycled fryer oil.

Duane Benson
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re: Diesels challenge hybrids for efficiency, low emissions
Duane Benson   9/10/2010 11:43:41 PM
Nice profile of the potential of diesel. And, fortunately, given that as the author states, his company wins with wide-spread adoption of either diesel or HEV, I'm betting this is more balanced than so much of what we read on the subject these days. I think it is important to have a lot of research going into HEV and pure electrics, and we need early-adopter purchases, but in the near-term, the planet could probably get the best reduction in fuels use and pollutants per buck by looking to solutions like modern diesel and super efficient gas power plants. I wonder how much fuel we could save simply by reducing the horsepower in all vehicles by ten or twenty percent. That's probably the real hold-up. We want power and lots of it. To satisfy that desire, we have big gas engines and hybrids that are more about increasing horsepower than fuel economy.

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Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.

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