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Old 03-02-2012, 04:49 PM   #41
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I agree on the last part. We need more small diesels in our cars!!! and small trucks. And why the hell is the Suburban only offered in a 6.0 in the 2500HD version that vehicle needs a diesel.
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Old 03-02-2012, 06:30 PM   #42
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I'm not sure diesels are going to happen in the "1/2 ton" segment. Diesel fuel is at least 15% more expensive and the maintenance costs are higher. If you look at the Ecoboost objectively, it is putting out diesel torque for its size. 420 lbs out of the 3.5 liters would be 840 at 7 liters. Very competitive with the big diesels on a ft lb/liter perspective. I saw the Car and Driver issue that mentioned the Caddy V-6. That same issue had the 2013 Chevy Silverado projected to be 500 lbs lighter, direct injection; but same pushrod V-8. Fuel mileage should be up which is a big deal.

These trucks are all going to have to get lighter and more efficient while still being able to "do the job".

Rumor is that the next generation Ecoboost is already under development. No surprise there. Smaller in displacement (heard 3.3L); matching or exceeding current output for HP and torque, fuel milesage +5%. 8 speed auto and 500 to 700 pounds lighter. The weight reduction should help in-town mileage considerably.

They are all going to have to do this if they want to keep selling trucks. The good news is that EVERYONE's product will continue to improve to the benefit of all of us.

I would also expect the current trend of bigger and heavier RV trailers will have to reverse itself. Trailers will have to become lighter and more aero to be a viable industry as energy costs continue to rise due to global demand.
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Old 03-03-2012, 08:42 PM   #43
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If people would buy as many Diesels as they do gas then diesel fuel would be cheaper than gas. Diesel cost less to make than gas. Diesel engines get better fuel mileage than a gas motor of the same cu/in. Maintenance don't cost any more than the gas motors do even though some people think they do.

The government wants people to use less fuel so I see diesel being the fuel of the future.
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Old 03-03-2012, 08:58 PM   #44
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Just saw Fuel sign on I-5 in central california The sign read 4.30 gal for gas and 4.29 for diesel. So I guess that is making it cheaper??????
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Old 03-03-2012, 10:06 PM   #45
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Many GM trucks are assembled in Mexico........Ford...Kansas City and Dearborn, MI...I saw it right on their stickers...
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Old 03-03-2012, 11:45 PM   #46
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"If people would buy as many Diesels as they do gas then diesel fuel would be cheaper than gas."
====================================
Say what?
Diesel often costs more because of higher demand. More diesels on the road would make the supply even tighter, with higher prices yet.
In Canada, the situation is reversed, and diesel is usually cheaper.
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Old 03-04-2012, 12:19 PM   #47
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Quote:
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"If people would buy as many Diesels as they do gas then diesel fuel would be cheaper than gas."
====================================
Say what?
Diesel often costs more because of higher demand. More diesels on the road would make the supply even tighter, with higher prices yet.
In Canada, the situation is reversed, and diesel is usually cheaper.
Yeah, the problem with diesel prices is the requirement for the new low sulphur fuel and the huge global demand for diesel. More diesels would just drive prices higher. While refining costs are lower, you get fewer gallons of usable fuel from each barrel so that keeps the price up.

There is no real magic to diesels. They have torque because of the turbos; just like the Ecoboost. And the fuel mileage is enhanced because there is more energy content in a gallon of diesel than a gallon of gas. Diesels DO have an advantage in fuel economy under load however.
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Old 03-04-2012, 08:28 PM   #48
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Yeah, the problem with diesel prices is the requirement for the new low sulphur fuel and the huge global demand for diesel. More diesels would just drive prices higher. While refining costs are lower, you get fewer gallons of usable fuel from each barrel so that keeps the price up.

There is no real magic to diesels. They have torque because of the turbos; just like the Ecoboost. And the fuel mileage is enhanced because there is more energy content in a gallon of diesel than a gallon of gas. Diesels DO have an advantage in fuel economy under load however.
My personal diesel gets as good if not better fuel mileage loaded , unloaded, city ,or highway than the Eco. They are great little pullers but they have a long way to go to get up to true tow engines. From what I've seen they aren't doing much better than their V8 engines. If they were to make a 6-7 liter Eco it would suck the gas. It would be one bad motor for sure but still not a gas sipper for sure.
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Old 03-05-2012, 09:35 AM   #49
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There is no real magic to diesels. They have torque because of the turbos; just like the Ecoboost. And the fuel mileage is enhanced because there is more energy content in a gallon of diesel than a gallon of gas. Diesels DO have an advantage in fuel economy under load however.
Not just because of Turbo. They have thicker blocks because they have Higher Compression. They are all around stronger. I'm sure there are other reasons. If all the magic of a diesel was just the turbo you would see Ford putting ECO Boost in their F450's LOL.
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Old 03-05-2012, 09:59 AM   #50
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Turbo'd engines have stronger blocks whether gas or diesel in most cases I believe. I guess the point I was trying to make is that it is the turbo's that are the key to torque creation.
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