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GM and the Diesel-Like Gasoline Engine

26 messages,  Last post on Jan 27, 2009 at 7:54 AM

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What is this discussion about? Automotive News, Diesel, Fuel Efficiency (MPG)

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#23 of 26 Re: GM & Diesel like gasoline [Dynas] by bigmclargehuge Jan 27, 2009 (5:59 am)
Replying to: Dynas (Jan 27, 2009 12:50 am) Didn't you just contradict yourself by saying that clean diesel is on its way, and then that its already here and dirty?   Not really buying the 1-year and they are dirty again. I drive behind dozens of the last-gen Jetta TDI's and they aren't even of the cleanest technology available and they still don't stink by my standards. And they are each 4 years old or more. Replies to this message: gagrice (Jan 27, 2009 6:15 am) Dynas (Jan 27, 2009 7:23 am) coldcranker (Jan 27, 2009 7:54 am)
#24 of 26 Re: GM & Diesel like gasoline [bigmclargehuge] by gagrice Jan 27, 2009 (6:15 am)
Replying to: bigmclargehuge (Jan 27, 2009 5:59 am) Even 20 year old Mercedes diesels do not stink with the new ULSD. I see more smoking gas vehicles than any other polluters. We get thousands of cars and trucks up from Mexico every day. Some of them will be smoking and I have yet to see one pulled over and ticketed. London has some kind of daily tax for driving in the city. I cannot imagine paying $15 to go into any city. They are going to have to pay me. So is dynas saying that all these smoking diesel cars are paying $15 a piece to drive around polluting his air?   Here is the truth standing next to the exhaust on my 1 year old Passat TDI was not as unpleasant as standing next to the exhaust on my new Sequoia gas guzzler.
#25 of 26 Re: GM & Diesel like gasoline [bigmclargehuge] by Dynas Jan 27, 2009 (7:23 am)
Replying to: bigmclargehuge (Jan 27, 2009 5:59 am) Na what I meant is that the type new type of diesel that they label as clean will soon be produced by GM too. I'm sorry if I wrote it in a confusing way....   Na not every car will be dirty again after a year but quite a few are (especially high mileage once). Diesel is a lot harder to clean that a gasoline engine, it's therefor easier to break.   In the US where just a few % of the fleet is diesel there will no doubt be more smoking gasoline engines than diesel once. If it was the other way around there would be no point talking which one is cleaner -- it would be kind of self evident.   I'm just speaking from the experience living on this side of the Atlantic where diesel make up nearly 50% of the sale. I simply don't wish the same thing happened over at your end...   I'm all for green stuff, but diesel ain't one of them in the long run.. Rather see, E85, biogas etc.. Well will use the zip lock now and try to not voice it again .. I know it's negative and they probably are some die hard diesel fans here ...   Cheers Dyna Replies to this message: coldcranker (Jan 27, 2009 7:54 am)
#26 of 26 Re: GM & Diesel like gasoline [Dynas] by coldcranker Jan 27, 2009 (7:54 am)
Replying to: Dynas (Jan 27, 2009 7:23 am) Well, this thread is specifically about GM's HCCI, not diesel. The fact that the thread title says "Diesel-Like" doesn't mean HCCI burns diesel. HCCI burns gasoline, in a compression-ignition mode, with higher compression ratios than regular gas engines. Higher compression ratios, if you can run an engine there, is the main way to get better fuel economy.   Please check out the What would it Take for YOU to buy a diesel car discussion too. (see the link for that in a post above this) if you want to discuss diesel specifically.

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