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08-18-2009, 06:15 PM #1
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- Dec 2004
- Arlington, Texas, United States
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2011 Duramax test driven in Milford Proving Grounds
I was invited by GM to the Milford Proving grounds last week, shaking hands, listening to the new executive management team ... oh and I got to test-drive a 2010 Chevy Express Van with the 2011 Duramax Diesel Engine and Allison Transmission.
This next-generation version of the heavy duty V8 has been developed to meet the new Federal US standards for diesel emissions while also giving a lot of additional technological advancement.
Specifically, it must reduce the smoggy nitrogen oxide (NOx) levels by 90% from today. It's a clean-air thing, and its a good thing.
The Duramax will be produced in two versions. A LML for the Silverado HD truck and a LGH for the Chevy Express van. Both are 6.6 L, with the LML pushing power to a six-speed Allison and the LGH to a GM built six-speed.
What's it like to drive?
While the engine is not fully fabricated, it was immediately obvious that it was very quiet compared to the current generation Duramax. The RPM level was also much lower, sitting at 600 RPM when at idle.
I've asked for an in-depth interview with the GM Diesel engineering cheif, and will report back more on this new engine when that interview is granted!
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99 Chevy Cavalier LS (105K+ miles - commuter car)
78 Chevy Suburban Silverado (454, 3/4 ton)
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11-05-2009, 07:20 PM #2
- Join Date
- Jul 2005
Was the unit you drove Urea injected?Brian
2008 Chevy 2500HD 4x4 LTZ Z71 CC/SB LMM
Edge Evo, MBRP DPF back 304 SS Exhaust, SuspensionMaxx Keys & more...
2006 Chevy 2500HD 4X4 CC/SB 8100 SOLD
2005 Chevy 2500HD 4X4 CC/SB LLY SOLD
2004 Chevy 2500HD 4X4 SC/LB 6000 SOLD
2002 Chevy 2500 4X4 Avalanche 8100 SOLD
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2001 Chevy 2500HD 4X4 EC/SB 8100 SOLD
2000 Chevy Silverado 3500 Dump 4X4
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