April 25, 2007 3:09 PM PDT

A diesel Honda that gets 62.8 miles a gallon?

Feast your eyes on this, car technology and high-mileage nuts. It's a Honda Accord that runs on diesel.

Honda expects to bring the clean-diesel car to the U.S. by 2010. It gets 62.8 miles a gallon on the highway, but otherwise looks and feels like a regular Accord. At that mileage level, the car is about as "clean" as a new Toyota Prius. But if you run it on biodiesel, a form of diesel made from vegetable oil or animal fat, it would be even cleaner than a Prius (Priuses get 60 in the city).

The advantage of diesel cars, however, is that they pack a lot of power.

Honda diesel Accord(Credit: Courtesy Diesel Technology Forum)

The car was shown off with a number of other cars in Sacramento, Calif., earlier this month as a way to promote clean diesel cars and technology. In the '90s, California passed strict emission controls that restricted the amount of sulfur a car could emit. As a result, diesel manufacturers curbed sales to California and the U.S. in general.

Since then, petroleum manufacturers have devised cleaner diesels that only emit about 15 parts per million of diesel, down from hundreds of parts per million. That satisfies the California law. Manufacturers, meanwhile, have come out with more efficient and powerful diesel engines that get 20 to 40 percent better mileage than their older cars.

"A lot of changes have taken place in the engine, all thanks to electronics," said Allen Schaeffer, executive director of the Diesel Technology Forum, which helped organize the Clean Diesel Technology Tour. (Cars from Audi and a tractor trailer rig from Caterpillar were also shown). "Half the cars in Europe are diesel."

Thus, diesels, usually thought of as smelly, are now environmentally somewhat sound.

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Add a Comment (Log in or register) 46 comments (Page 1 of 3)
Honda Car
by Vonmaxx April 25, 2007 4:40 PM PDT
I want to buy one. Tired of paying 3.00 per gallon. The car I have now gets 28 MPG on the interstate. At 2 1/2 times the MPG it would not seem that bad.
Reply to this comment
No need for eco laws.
by Solaris_User April 25, 2007 5:06 PM PDT
Honda did this without any government force at all. They made a car that got great gas mileage on bio diesel fuel due solely to market demand. Environmental Education not force. It stiffs the oil cobal too.
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For the record...
by -fjtorres- April 25, 2007 5:32 PM PDT
That is an Acura TSX body in the photo, not a NorthAM Accord. The TSX is a left-hand drive version of the Japan-spec Accord. Its a bit smaller and more manueverable than the US-made Accords. If that Diesel can deliver power and handling comparable to what the TSX currently delivers *and* 60 MPG, Honda is going to have trouble meeting demand.
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Didn't most the the VW diesel vehicals get about 60 mpg last year?
by aka_tripleB April 26, 2007 12:54 PM PDT
I'm fairly certain that the website had claims that they reach well into 50 mpg at least. Now, Honda is claiming 62.8? *Woopie-doo! You one up'ed people!* Why is Honda get so much credit for minor improvements?
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Writer is confused!
by gregsfc April 26, 2007 4:57 PM PDT
quote: "Since then, petroleum manufacturers have devised cleaner diesels that only emit about 15 parts per million of diesel, down from hundreds of parts per million." Whoa!!! This is so wrong I can't believe they printed it! Petroleum manufacturers didn't do anything. The car manufacturers designed exhaust treatment systems and engines that can cut particulates of matter 90%, and nitrogen oxides 90% from levels found in the cleanest, 2004 diesel cars. As a prerequisite, however, the engine manufacturers needed the EPA to mandate 15 ppm diesel fuel which had been the standard throughout most of the world for almost ten years. This lower sulfur fuel allows automakers to apply these advanced systems. The 500 ppm, sulfur diesel would destroy these exhaust treatment systems and was keeping the auto industry from offering the U.S. diesel cars. The petroleum industry fought this for years, even as they knew it was the right thing to do for the environment. Now, companies like Shell are airing commercials giving themselves credit for bringing cleaner fuels to America, when in fact, they held out until they were forced to market the clean fuel here. 15 ppm sulfur is not a measure of output as this article states. It is the level of sulfur in the fuel and does not have anything to do with the level of sulfur allowed out the tailpipe of diesel cars and trucks. PM-.002 grams per mile. NOx - .07 grams per mile, fleet avg. Those are the requirements that the automanufacturers have to reach that will allow fifty-state emission compliance through 2010. These numbers are more commonly referred to as tier 2, bin 5, and will be the same in all fifty states by 2009.
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Bad math??
by tcam000 May 1, 2007 5:46 PM PDT
I find it hard to believe that, that Accord can get 62.8 MPG. Currently, that Accord sells in UK with a 2.2L i-CTDI (diesel engine) which can attain 52.3 MPG combined. Now 52.3 MPG is based on Imperial gallons which is 1.2 US Gallons. Now to convert that number to US gallons, you should do 52.3/1.2 = 43.6. Now if you do the opposite and do 52.3 * 1.2, you get 62.76 which rounds to 62.8 MPG. Coincidence that this new car gets exactly 62.8 MPG, a 44% increase in mileage, when announced in the US market? I think not!
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Who cares about "power"?
by mikeshafer May 3, 2007 3:35 PM PDT
Do most Americans really need the ability to go from 0-60 in 5 seconds? 10 seconds? My 2003 Jetta TDI is peppy enough with its 1.9L turbodiesel engine. I think acceleration loses out when gas prices are $3.50/gallon. Plus you can run it on biodiesel which is domestic and often times cheaper now that the oil companies are robbing us of even more money. All last summer in Seattle, biodiesel was 20-30 cents cheaper per gallon than diesel! Bring on the diesel cars. Sign me up--I'll take one. And while you're at it, bring the MINI Cooper D (diesel) to the USA! 64.2mpg!
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Ethanol and hybrids can kiss my exhaust
by tekintl July 11, 2007 12:55 PM PDT
I tired of ethanol getting government subsidies when Diesel is clearly better. Diesel has more energy per gallon than both gasoline and ethanol. Plus, diesel can be made simply from waste veggie oil in your own backyard. I drive a TDI Jetta right now but dont see why I have to wait to get a TDI Honda when they've been driving them in Europe for years. 60 MPG Batteries not included!
Reply to this comment
This is awesome news for automotive & environment industry!
by sagargemini July 31, 2007 1:48 AM PDT
Hey, this is a great news for automotive industry and very positive for the highly polluted environment! Indeed a great relief!! Check out more such interesting stuff at: http://niche-technologies.blogspot.com. Thanks.
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Accord?
by iluvmysh July 31, 2007 7:45 AM PDT
Looks like a TSX to me?
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