GM Plans First Light Duty V-8 Clean Diesel for North America

[SJ_GTI]

Which means it's going to come standard with a lot of goodies, driving the price up even more.

Its possible, but I wouldn't count on it. The 6.0L is a standalone option on the Silverado ($1,695). The 5.3L is also a stand alone option ($600). Standard engine is the 4.8L V8.

I would think the 4.5L diesel will probably be another ~1-2k above the 6.0L.

[Tave]

Makes sense.

[CMan]

Guys. Where's the excitement? 310 HP and 520 TQ. Those are FANTASTIC numbers. The 6 speed auto being used in the HD's will handle the power, and these should pull 26 on the highway if it gets as much better as they say it will. BE EXCITED ALREADY!!!

[S204STi]

Guys. Where's the excitement? 310 HP and 520 TQ. Those are FANTASTIC numbers. The 6 speed auto being used in the HD's will handle the power, and these should pull 26 on the highway if it gets as much better as they say it will. BE EXCITED ALREADY!!!

Those are the 6.6 Duramax numbers.  This will be a 4.5L, with significantly less power and torque.

[CMan]

O RLY?

" Freese said the new V-8?s compact size enables it to fit in the envelope of a gasoline small-block engine, which provides GM the flexibility to introduce this engine in a wide variety of vehicle applications should there be future market demand.

The premium V-8 diesel engine is expected to deliver class-leading refinement, horsepower and torque and fulfill multiple vehicle applications with ratings in excess of 310 horsepower and 520 lb-ft of torque."

The 6.6 DMax has 365 HP, 660 TQ.

[The Pirate]

If it really does get close to 26 mpg on the highway (that's news to me), I'd seriously consider one. 

[CMan]

GM says it will improve efficiency by 25%.

The 5.3 trucks get 16/20 in 4X4 guise, and 16/22 in 2WD trim. So, I was actually wrong.

That would mean 2WD trucks get 20/27, and 4X4 trucks get 20/25, assuming it's based on 5.3 trucks. If the 25% figure is based on 6.0 trucks, it'll get 19/24.

[The Pirate]

Either way, those would be damn impressive numbers for a full sizer!

[SJ_GTI]

Either way, those would be damn impressive numbers for a full sizer!

x2.

And even though a 25% improvement of ~20 MPG doesn't look that big, we should keep in mind that we, as Americans look at fuel efficiency backwords. A 25% improvement in economy is much better on a car that gets low mileage (like an H2) than it is on a car that gets high MPG (Corolla).

As an example, lets take a an average driver who goes 15,000 miles per year. in a 10 MPG hummer, he will use 1500 gallons. If he increases his mileage by 25% (by using this diesel engine) and gets 12.5 MPG, he will now use 1200 gallons, or a 300 gallon improvement per year.

Now let's take a Corolla, which averages 35 MPG. Each year the driver will use 428 gallons of fuel. Let's say he switches to a Prius to get a 25% improvement, or 43.75 MPG. He will now use 343 gallons per year, or an 85 gallon improvement per year.

Because we look at fuel efficiency backwards the EPA makes it look like the Corolla driver got a better improvement than the Hummer (2.5 MPG improvement compared to 8.75 MPG improvement) but in reality, the improvement in the Hummer was far more significant. If we applied the 25% improvement to a 20 MPG Silverado, our driver would go from using 750 gallons of fuel per year to 600 gallons of fuel per year.

[S204STi]

O RLY?

" Freese said the new V-8?s compact size enables it to fit in the envelope of a gasoline small-block engine, which provides GM the flexibility to introduce this engine in a wide variety of vehicle applications should there be future market demand.

The premium V-8 diesel engine is expected to deliver class-leading refinement, horsepower and torque and fulfill multiple vehicle applications with ratings in excess of 310 horsepower and 520 lb-ft of torque."

The 6.6 DMax has 365 HP, 660 TQ.

Oooohh, sorry   I thought you were talking about the 6.6, when you mentioned the HD transmission.  Which probably won't in fact fit in the 1/2 ton chassis.  It's completely different.

But, the 6L80 should deal with it handily.

[TheIntrepid]

Either way, those would be damn impressive numbers for a full sizer!

+1.

The 6L80 would be the ideal tranny too!