why does GM diesel truck get better milage and power ?

Why does the GM diesel truck get better milage and power than the Ford F-350 diesel ? See http://www.popularmechanics.com/automotive/new_cars/4230317.html
GM Diesel: 18.0 mpg Ford Diesel: 11.2 mpg Dodge Diesel: 13.0 mpg
Lynn
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The trucks were not equal. The Dodge and Ford were duallies with much higher maximum GCVWs than the GMC. The GMC was basically a light duty truck with a deisel engine. It weighed 1600 lbs less than the Ford. The GMC is the perfect truck for the urban cowboy who occasionally tows a garden trailer. The "towing fuel" economy was much closer, though the GMC still had a large overall weight advantage. If a truck as whimpy as that GMC is all you need, just get an F150. The frame and steering gear of an F150 is at least as good as the GMC. GM is specializing in building trucks for people who don't need trucks. They are damn good at it.
Towing Fuel Economy
GMC - 10.50 Ford F350 Dually - 7.60 Dodge 3500 Dually - 8.70
Curb weights
GMC - 7100 Ford F350 Dually - 8700 Dodge 3500 Dually - 7900
Maximum loaded trailer weight (all or the same with single or dual wheels)
GMC - 13000 Ford F350 - 15700 Dodge 3500 - 16400
Of course Ford also offers the F450 with a 24500 lb maximum trailer wieght - GM and Dodge don't even try to compete with that.
Ed
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GM builds a truck?

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LMFAO
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Jim Warman wrote:

Don't need No stinkin duely's to haul golf clubs!
Bob
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now,now Jim, that's not nice.
true, but not nice. ;-)

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But Jim, why does my non-diesel V-10 Excursion only get 8mpg. For what I payed for it, it should get 26mpg and ride like a Lincoln Town Car....Right? Ford is just screwing over the Upper Middle Income folks to supply the lower income people with cars like the...ummmm... yea... that one...
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