Sign In Join 



GM and the Diesel-Like Gasoline Engine

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

You are in the Hybrid Vehicles Forum. Your Host is pf_flyer

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


Messages Page 3 of 3
1
2
3
Prev
Next
Last
Go To Msg #
Search This Discussion

#17 of 26
Re: GM & Diesel like gasoline [jimlockey] by nedzel
Oct 17, 2007 (11:44 am)
Reply

Replying to: jimlockey (Sep 22, 2007 7:26 am)

"GM lies lies and lies when it comes to diesel cars. They are scared to death of diesel cars and what Europe is doing with them."
 
Hockeypucks. GM sells plenty of diesels in Europe, in their Opel, Vauxhall, and Saab lines.
#18 of 26
Re: GM & Diesel like gasoline [nedzel] by galvang
Dec 02, 2007 (9:56 pm)
Reply

Replying to: nedzel (Oct 17, 2007 11:44 am)

Hockeypucks. GM sells plenty of diesels in Europe, in their Opel, Vauxhall, and Saab lines.
 
True but the diesels they sell in Europe are not the clean diesel type. Though they are introducing one this year. Hopefully they can transfer some of those clean diesel engines here to the State side very soon.
#19 of 26
Re: GM & Diesel like gasoline [galvang] by rockylee
Jan 09, 2008 (11:13 am)
Reply

Replying to: galvang (Dec 02, 2007 9:56 pm)

Well we now know at least the 2.9 V6 TT is coming here soon !!!
 
-Rocky
#20 of 26
Re: GM & Diesel like gasoline [galvang] by coldcranker
Dec 07, 2008 (11:25 am)
Reply

Replying to: galvang (Dec 02, 2007 9:56 pm)

The problem right now with HCCI is the narrow range of RPM of power delivered, and the complicated control strategy to keep the engine from stalling or knocking badly. That said, the real HCCI usage seems to be in a hybrid application, where the engine is free to run in a narrow RPM range, letting the electric motor or hydraulic motor create transient torque when required.
 
And you diesel fans out there need to remember 2 things:
 
1. Diesel exhaust is expensive and difficult to clean. The urea (yes, urine-like) catalytic injections are craziness. The EPA says if your pee-tank runs dry, then the car cannot be driven.
 
2. Diesel fuel costs much more than gasoline.
#21 of 26
Re: GM & Diesel like gasoline [jimlockey] by Dynas
Jan 27, 2009 (12:50 am)
Reply

Replying to: jimlockey (Sep 22, 2007 7:26 am)

Hi,
 
Well as said GM Asia/Europe etc sells plenty of Diesel powered vehicles. Yes they aren't yet of the "clean type" but it's on the way if I'm not totally misinformed.
 
I don't know if you all do hybrids because it's greener or because it's cheaper. If it's the cheaper line then it's not hard to understand you wait and will applaud the arrival of "clean type" diesel to North American shores.
 
However if it's because it's greener then you all better write your Congress man, the President etc.. because "clean type" diesel or not diesel will never be green sorry clean in the long run. It might pass the type inspection when it rolls off the assembly line but two years down the track it's not clean anymore.
 
I live in London UK and I drive my LPG powered Seville (1999) or pedal my bike (very green with the exception of some amount of BioMethane). I daily need to breath the noxious fumes of year old "clean diesel" engines and trust me they aren't clean anymore. It might be the performance chip, it might be bad maintenance, deliberate acts etc.. but the fact is that you can feel the amount of NOX, unburnt fuel, particles!! etc that they spew out and it's not fun especially when you are on a bike just behind them.
 
Sorry carbon foot print my behind, I rather breath then save a 20% of CO2 running a dirty diesel, because diesels are dirty no matter what you do! Sure you can run them on cooking oil, but do you think that will emit less NOX, unburnt fuel, particles!! etc ?
 
Sorry just had to say it, I know it's negative but I hope you guys and girls never get a lot of diesel cars over there,,
 
Cheers
Dyna
#22 of 26
Re: GM & Diesel like gasoline [Dynas] by steve_ HOST
Jan 27, 2009 (3:31 am)
Reply

Replying to: Dynas (Jan 27, 2009 12:50 am)

Please check out the What would it Take for YOU to buy a diesel car discussion too.
#23 of 26
Re: GM & Diesel like gasoline [Dynas] by bigmclargehuge
Jan 27, 2009 (5:59 am)
Reply

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.
#24 of 26
Re: GM & Diesel like gasoline [bigmclargehuge] by gagrice
Jan 27, 2009 (6:15 am)
Reply

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)
Reply

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
#26 of 26
Re: GM & Diesel like gasoline [Dynas] by coldcranker
Jan 27, 2009 (7:54 am)
Reply

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.

Messages Page 3 of 3
1
2
3
Prev
Next
Last
Go To Msg #
Search This Discussion
To POST a message, please Sign In.

New? Join Now!

Forum Tools

Please sign in.
Email Address:

Password:

Forgot Password?

Search Forums

Enter Keyword(s)

Advanced Search

Browse by Vehicle



View All Vehicles
Advertisement
Ask the Community
See What People Are Asking

Browse by Board

Browse by Topic


View All Topics
Advertisement