seftonm
08-12-2009, 08:17 PM
http://www.cleanmpg.com/photos/data/2/AmericanFlag.jpg Among its new features, the next generation Duramax diesel will support up to B20 biodiesel and will use a urea solution for NOx reduction. (http://news.pickuptrucks.com/2009/08/first-look-2011-duramax-diesel-v8-engine.html)
http://www.cleanmpg.com/photos/data/501/Chevy_Silverado_HD.jpgMike Levine - PICKUPTRUCKS (http://news.pickuptrucks.com) - August 12, 2009
The new Duramax is cleaner than ever, but still has way more power than most drivers will ever need --Ed.
We’ve shown you spy photos and shared what our sources have told us, but now GM has pulled back more of the veil surrounding its next-generation heavy-duty Duramax diesel V-8 engine program. The illumination happened during a future product briefing at GM’s Milford Proving Grounds.
Why the need for a new round of updates to the Duramax just three years after the current engines arrived? Come Jan. 1, 2010, all new diesel-powered vehicles will have to meet tougher federal diesel emission standards that will reduce allowable nitrogen oxide levels by 90 percent from today, 96 percent from 1994 levels.
NOx is a major air pollutant that contributes to smog, asthma, and respiratory and heart diseases. It's a byproduct of diesel’s high combustion temperatures.
The new Duramax diesel engines are built to meet new clean-air regulations, plus they feature other key improvements in technology and capability. Like today’s Duramax, the Isuzu-GM joint venture engine will continue to be available in two versions.
“The new Duramax diesels are based on the same engines that have been around since 2001,” said Gary Arvan, a GM diesel powertrain engineering chief. “The 2500 and 3500 Chevrolet Silverado and GMC Sierra HD pickups receive the high-power LML motor [replacing the 2007-10 LMM], while the 2500 and 3500 heavy-duty vans receive the lower-rated LGH engine [also replacing the LMM]. Both have iron blocks, aluminum cylinder heads, and their [6.6-liter] bore and stroke are unchanged.”... http://news.pickuptrucks.com/2009/08/first-look-2011-duramax-diesel-v8-engine.html
http://www.cleanmpg.com/photos/data/501/Chevy_Silverado_HD.jpgMike Levine - PICKUPTRUCKS (http://news.pickuptrucks.com) - August 12, 2009
The new Duramax is cleaner than ever, but still has way more power than most drivers will ever need --Ed.
We’ve shown you spy photos and shared what our sources have told us, but now GM has pulled back more of the veil surrounding its next-generation heavy-duty Duramax diesel V-8 engine program. The illumination happened during a future product briefing at GM’s Milford Proving Grounds.
Why the need for a new round of updates to the Duramax just three years after the current engines arrived? Come Jan. 1, 2010, all new diesel-powered vehicles will have to meet tougher federal diesel emission standards that will reduce allowable nitrogen oxide levels by 90 percent from today, 96 percent from 1994 levels.
NOx is a major air pollutant that contributes to smog, asthma, and respiratory and heart diseases. It's a byproduct of diesel’s high combustion temperatures.
The new Duramax diesel engines are built to meet new clean-air regulations, plus they feature other key improvements in technology and capability. Like today’s Duramax, the Isuzu-GM joint venture engine will continue to be available in two versions.
“The new Duramax diesels are based on the same engines that have been around since 2001,” said Gary Arvan, a GM diesel powertrain engineering chief. “The 2500 and 3500 Chevrolet Silverado and GMC Sierra HD pickups receive the high-power LML motor [replacing the 2007-10 LMM], while the 2500 and 3500 heavy-duty vans receive the lower-rated LGH engine [also replacing the LMM]. Both have iron blocks, aluminum cylinder heads, and their [6.6-liter] bore and stroke are unchanged.”... http://news.pickuptrucks.com/2009/08/first-look-2011-duramax-diesel-v8-engine.html