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GM 4.5L V8 Duramax Turbo-Diesel Details

Australian Car Advice
6 May 2008
www.caradvice.com.au

General Motors has released official details on its new 4.5L V8 Duramax turbo-diesel engine which could feature in the Holden Commodore line up by 2010.

The new V8’s compact size enables it to fit within the same space as petrol units, offering GM the flexibility to introduce it in a wide variety of vehicles to meet market demand and new CAFE regulations.

It is expected to deliver 231kW of power and an enormous 705Nm, returing a 25 percent improvement in fuel efficiency over comparable petrol engines.

The environmental benefits of the new engine include a 13-percent reduction in CO2 emissions and at least a 90-percent reduction in particulates and NOx compared to many diesel vehicles today.

“This new V-8 diesel meets the toughest emissions requirements in North America, and it also delivers an effortless performance feel because of its high torque across the speed range,” said Charlie Freese, executive director of GM Powertrain Diesel Engineering.

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Does anyone really think this will be coming?.
Performance like this form a diesel is insain!..

Option 290kw 560Nm V8... Or 4.5lt V8 Turbo Diesel 231kw 705Nm..

I might take the Diesel:D.
 

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If it works in the Commodore, they will we see it in the G8 or the Park Avenue?

or even.... gasp, the Camaro?
Maybe other way around, If it works in the G8 and is wanted that gives Holden reason enough to do it, Either way they will be testing it out from go to wo.
So it will be all good for everyone:).
 

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It would work great, if a little heavy, as a high performance engine in cars but the new 2.9L V6 diesel coming out of Europe would be a better match for most people and offer much better fuel economy I would guess. Depends on your priorities. I'd love a G8 with the 2.9L.
 

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The diesel option would probably be prohibitively expensive combined with high diesel fuel costs = no go. I'll stick with gasoline.
 

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It would work great, if a little heavy, as a high performance engine in cars but the new 2.9L V6 diesel coming out of Europe would be a better match for most people and offer much better fuel economy I would guess. Depends on your priorities. I'd love a G8 with the 2.9L.
Agreed - I'd much rather see a V6 diesel in the Commodore/G8 instead of the Duramax...
The success of the Audi R8 TDI will determine if we get a performance car with a duramax. I for one think it would be awesome. Better mileage and tons more potential for tuning ect.
...however, the 4.5 liter Duramax would be nice in a performance variant, if they were so inclined!
 

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With diesel fuel close to $4.50 I don't see no benefit. So what I will get 35mpg in my G8 for example and pay high diesel fuel costs. Yup that saves me money. With more diesels on the road it will give oil companies an incentive to raise diesel prices even more.
Don't worry gasoline will soon catch up to diesel prices.
 

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Might be good for HSV and LWB models of holden to export into Europe and the middle east with this TD?.
They say it's what is missing maybe right now?.
 

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Yeah, it will and Diesel will also go up. Diesel fuel use to be less expensive than gasoline. What happened?
Demand in europe for diesel is through the roof, there isn't enough global capacity to satisfy demand. If our refineries (which don't make all that much diesel to begin with) can get a hefty price in europe, guess where that tanker is going?
 

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Given the torque rating of this motor i dont think it will end up in passenger cars without being detuned somewhat, 705Nm is way more than a normal passenger car needs, but is still nice to have.

Maybe GM need to make a 4.0Ltr version of this motor for cars, then you could have the 2.9 V6 for medium cars and as a entry level diesel for large cars and have the 4.0Ltr for large cars and the SUV's and maybe the CUV's to, given there extra size and weight, has GM said what the weight of this motor is since people seem to be worried about the weight of it?
 
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