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177 comments on DrumBeat: May 26, 2007

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ericy on May 26, 2007 - 10:56am Permalink | Subthread | Parent | Comments top

Some of us figured it out years ago...

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jjhman on May 26, 2007 - 12:37pm Permalink | Subthread | Parent | Comments top

Some, like the Sierra Club, are dead set against use of diesel in the US because it is much more difficult to reduce emissions. If I recall correctly the latest scheme involves something like injecting urea into the combustion chamber to reduce emissions. That requires a "fillup" of urea solution as well as diesel fuel. Not a bad solution for those of us who need to stop often to urinate.

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ericy on May 26, 2007 - 12:56pm Permalink | Subthread | Parent | Comments top

The buzz is that in the 2008 MY, VW will bring back the diesels that will be 50-state clean and will pass emissions. Still waiting to hear details, but the rumors are that the smaller cars like Jetta & Rabbit won't need the urea thing.

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xburb on May 26, 2007 - 3:10pm Permalink | Subthread | Parent | Comments top

Bring It On... Lets Roll
and it's the right color for evasion :)

The little stratified charge 1.5 and 1.6's routinely made 50-55 mpg w/o turbo. Still have one. Today's 1.2liter. 3cyl. and 3 l. per 100k is better than that. Do you think it'll ever show up in America?

We can do so much better feeding a little lower down on the fractioning tower. Thinking total emissions/mpg per passenger mile. Be interested if you hear more rumors.

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ericy on May 26, 2007 - 6:37pm Permalink | Subthread | Parent | Comments top

I am aware of the 1.3l diesel (Lupo in the U.K., I guess), but we haven't seen them as of yet. I guess they think they won't sell enough of them as long as fuel is cheap, but in reality they needed to solve the emissions problem first, I suppose.

My Jetta has a 1.9l turbodiesel and gets about 50mpg. That's the only diesel engine configuration that VW sells in the U.S. (I suppose I could order parts from overseas and build a frankencar - don't laugh - I know people who have done things like this).

There are people at www.TDIClub.com who work to maximize fuel economy - one guy drove from Salt Lake City to Philadelphia, and got > 70mpg. He got stopped by the police for driving too slow however, so this wouldn't work for everyone. The guy who did this is a retired aeronautical engineer, and gave a talk about coefficients of drag and maximization of fuel economy.

My guess is that you could scale the Jetta back to a 1.6l engine and the car do just fine - just a little slower. For the 1.3l to work, you would probably need a lighter body like the Lupo.

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xburb on May 27, 2007 - 11:25am Permalink | Subthread | Parent | Comments top

Thanks for yor response. I bumped this topic ahead to today to allow more people to grind it through the hopper.

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totoneila on May 26, 2007 - 5:13pm Permalink | Subthread | Parent | Comments top

Hello Jjhman,

I am hoping that a small diesel scooter, trike, or motorcycle becomes available soon here in the US. A 250cc diesel should provide sufficient motive power and if beer is still cheap enough: no widespread problem generating sufficient urine for clean tailpipe emissions.

Of course: No drinking, then riding. Just motor to your local tavern for a 'fillup'. =)

Bob Shaw in Phx,Az Are Humans Smarter than Yeast?

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musashi on May 26, 2007 - 9:48pm Permalink | Subthread | Parent | Comments top

The KLR Kawasaki's that are converted to diesel for the USMC are available if you look hard enough. Good fuel mileage, big tank, huge range.

Over 90 mpg at 55 mph and capable of 90 mph if needed, run on diesel, biodiesel or jet fuel.

http://www.dieselmotorcycles.com/military.htm#bike1

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177 comments on DrumBeat: May 26, 2007

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