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08-19-2008, 09:34 PM
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#1 (permalink) | |
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News Contributor
Join Date: Sep 2003
Location: Kirkland, WA
Drives: 2004 Cadillac CTS
1991 Chevrolet S-10 Baja Editio
Posts: 3,916
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She's so fine, my four point five!
2008-August-19
GM’s Duramax 4.5L Turbo Diesel admin By: Matt Kelly GMnext Contributor I recently met with Charlie Freese, Executive Director of Diesel Engineering at GM, who introduced me to the new Duramax 4.5L V-8 turbo-diesel engine, scheduled for introduction in 2010 model light duty trucks. What impressed me was the improved fuel economy over gasoline engines, and the 50-state emissions compliance. This is the first time GM has used a selective catalytic reduction (SCR) NOX after treatment system with diesel particulate filter, which allows the engine to meet Tier 2, Bin 5 regulations, reducing CO2 emissions thirteen percent and particulates and NOX emissions 90% compared to many of the diesel engines of today. Cool! Charlie went on to describe that instead of putting the intake manifold inside the V, GM reversed the airflow so the exhaust manifold and the turbo are inside the V between the cylinder heads, saving space. Plus, the engine is lighter, built with 70 fewer parts and it’s quieter too! The engine will debut in Chevy Silverado and GMC Sierra North American Light Duty truck models. What do you think? Join the conversation and send us your comments! http://blog.gmnext.com/?p=238
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http://www.northwestautosalon.com/ My Rides (2004 Cadillac CTS Lux/sprt, 1991 Chevrolet S-10 Baja): http://flickr.com/photos/45118511@N00/ http://www.youtube.com/user/bajabusta Quote:
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08-19-2008, 10:32 PM
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#3 (permalink) | |
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4.4 Liter Supercharged Northstar
Join Date: Oct 2005
Location: New York
Posts: 2,473
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Re: She's so fine, my four point five!
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08-19-2008, 11:04 PM
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#4 (permalink) |
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7.0 Liter LS7 V8
Join Date: Dec 2007
Location: West Chester, OH
Drives: Chevrolet Malibu LS, GMC Envoy SLE, GMC Sonoma SLS
Posts: 5,493
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Re: She's so fine, my four point five!
What's the fuel economy going to be like?
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Proud to drive American. Proud to drive GM. Current Cars: 2007 Chevrolet Malibu LS: 2.2L ECOTEC I-4 2003 GMC Envoy SLE: 4.2L Vortec 4200 I-6 1998 GMC Sonoma SLS Ext. Cab: 4.3L Vortec 4300 V6 Former Cars: 1993 Saturn SW2 (1993-2006, 243,000 miles) 1989 GMC Safari SLT (1989-2003, 293,000 miles) Future Car: 2010 Chevrolet Camaro 2LT RS: 3.6L DI VVT V6 
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08-19-2008, 11:28 PM
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#5 (permalink) | ||
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News Contributor
Join Date: Sep 2003
Location: Kirkland, WA
Drives: 2004 Cadillac CTS
1991 Chevrolet S-10 Baja Editio
Posts: 3,916
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Re: She's so fine, my four point five!
Quote:
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http://www.northwestautosalon.com/ My Rides (2004 Cadillac CTS Lux/sprt, 1991 Chevrolet S-10 Baja): http://flickr.com/photos/45118511@N00/ http://www.youtube.com/user/bajabusta Quote:
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08-19-2008, 11:37 PM
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#6 (permalink) | |
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5.3 Liter Vortec V8
Join Date: Nov 2005
Location: Kaneohe, HI
Posts: 1,437
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Re: She's so fine, my four point five!
Quote:
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I don't have a ride, but I do have a car. CNBC: "By all accounts, Rick Wagoner's done a hell of a job. Even his critics in the industry have told me Wagoner and his top lieutenants don't get enough credit for the job they're doing in Detroit." |
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08-19-2008, 11:48 PM
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#7 (permalink) |
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5.3 Liter Vortec V8
Join Date: Mar 2006
Location: Hicktown, PA
Drives: 99 Black Chevy S-10 ZR-2 5 Speed
Posts: 1,368
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Re: She's so fine, my four point five!
I believe fuel economy will be 25% higher than the V8, Idk what V8, but let's say the 5.3. Combinded milage in an 09 with the 6 speed is 17mpg. So with the 4.5 it should be around 21.25. 17.5 city, 25 highway.
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 Fender Bender My Rides 1999 Chevy S-10 ZR-2 5 speed -K&N Intake | Custom Dual Exhaust | Cowl Hood Panasonic Head Unit | Dual Speakers | Legacy Rebel Amp | 10" Kicker Comp Subs 2005 Yamaha Kodiak 450 4X4 -3000lb. Xtreme Winch| Removed Baffle Fog Lights |
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08-20-2008, 01:39 AM
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#8 (permalink) |
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GMI Mod/Camaro Fanatic
Join Date: Apr 2003
Posts: 9,545
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Re: She's so fine, my four point five!
Aprox 5mpg better then current 15/20 standards. So maybe 19/25?
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 Any Inside Info? Questions or Coments? Ideas? Email me at BigAl@GMInsidenews.com 1993 Caprice 9C1 1987 Camaro Z28 1972 Camaro RS |
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08-24-2008, 06:32 PM
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#9 (permalink) | |
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3.9 Liter V6
Join Date: Jun 2006
Location: McHenry, IL
Drives: 06 Silverado 2500HD Dmax
06 Envoy XL
Posts: 834
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Re: She's so fine, my four point five!
Quote:
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2006 Silverado 2500HD D/A, CC/SB Summit White 2006 Envoy XL I-5 Dark Crimson Metallic    4 out of 3 people have problems with fractions. |
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08-24-2008, 06:38 PM
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#10 (permalink) |
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2.0 Liter Supercharged ECOTEC
Join Date: Jun 2008
Location: Eastern North Carolina
Drives: 2008 Chevy Colorado LS Z85 2WD, Vortec 2900, 185hp
Posts: 152
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Re: She's so fine, my four point five!
Sounds inovative. What will the capability of the 4.5 be as compared to the gas engines in terms of towing and hauling?
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Grumman A-6F Intruder II  2 General Electric F404-GE-400D 10,800 lb of thrust each 33,654 lbs payload of weapons and fuel AMRAAM/Sidewinder Defense Now thats the Intruder done right 
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08-24-2008, 08:11 PM
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#11 (permalink) | |
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3.9 Liter V6
Join Date: Jun 2006
Location: McHenry, IL
Drives: 06 Silverado 2500HD Dmax
06 Envoy XL
Posts: 834
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Re: She's so fine, my four point five!
Quote:
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2006 Silverado 2500HD D/A, CC/SB Summit White 2006 Envoy XL I-5 Dark Crimson Metallic 4 out of 3 people have problems with fractions. |
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09-26-2008, 06:40 PM
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#12 (permalink) | |
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6.0 Liter Vortec V8
Join Date: Feb 2003
Posts: 1,637
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Re: She's so fine, my four point five!
Quote:
This was a 'blank sheet of paper' design on steroids. When the exhaust is going into the middle of the V engine - it's like - we're not in Kansas anymore Toto. People who are getting nervous about the future of the "1/2 ton pickup" should put their worries aside. The 4.5 is the cavalry riding to the rescue. This thing has thermal efficiency that simply can't be touched by 'normal' engines. Much more heat/pressure from the exhaust manifold is captured to turn the turbo. Oh, and it slides into anywhere the Chevy V8 fits. Dodge might be squeezing another 30hp out of the Hemi, Ford's gone 3 valve crazy - but this 4.5L is like going from 1939 to about 1970 in one jump. |
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10-09-2008, 01:58 PM
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#13 (permalink) |
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GMI Staff Member
Join Date: Apr 2005
Location: Texas Hill Country
Drives: 07' GMC CREW CAB
08' GMC X-CAB
Posts: 3,042
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Re: She's so fine, my four point five!
Sounds great. I for one cant wait to see what this does for sales. Do we know what transmission will back these?
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2007 GMC Sierra CC Stealth Gray 2008 GMC Sierra XCab Z-71 4x4 Onyx Black 2004 GTO Phantom Black Metallic- GONE -  1998 GMC Sonoma Cherry Red Metallic - GONE - GM/ASE Certified Service Consultant MOE Platinum 04-05-06-07 "Contrary to common belief, planning is complicated and is not run by complete idiots, so you'll just have to trust that the decisions were made on good information that's not made available to you." |
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10-09-2008, 04:17 PM
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#14 (permalink) | |
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GMI Staff Member
Join Date: May 2005
Location: Celestial Being
Drives: 2007 Saturn Aura XR, 2007 BMW 335xi
Posts: 2,435
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Re: She's so fine, my four point five!
Quote:
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