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GM bests Ford's EcoBoost V6 fuel efficiency without complex, expensive turbochargers

Ford has spent a great deal of time and money developing and marketing its EcoBoost family. The company makes a wide variety of EcoBoost engines (which is basically a fancy name for turbocharging plus direct injection) ranging from a 1.0-liter three-cylinder to a 3.5-liter V6.
Ford's efforts have paid off, as sales of the naturally aspirated V6- and EcoBoost V6-equipped F-150s have outpaced those of the V8 models. And all along the way, Ford has thumbed its nose at the Chevrolet Silverado/GMC Sierra, stating how its EcoBoost V6 gets V8 performance and V6 fuel economy.
GM, however, is hitting back today with the announcement that its new 5.3-liter EcoTec3 V8 engines manages to produce 355 horsepower and 383 lb-ft of torque. While the horsepower number compares favorably with the EcoBoost V6 in the F-150, it's down quite a bit in torque. GM says that in 4x2 trim, the EcoTec3 will be good for 23 mpg highway; checking off the 4x4 option box will result in 22 mpg on the highway.

2014 Chevrolet Silverado
Both of these numbers are 1 mpg better than the EcoBoost F-150. In fact, it matches the fuel economy of Ford’s naturally aspirated, 3.7-liter V6.
“Silverado’s available 5.3-liter EcoTec3 V8 gives customers the best of both worlds,” bragged Jeff Luke, executive chief engineer for the Silverado. “Customers get the proven power and dependability of a V-8 truck engine, with better fuel economy than a leading competitor’s smaller turbocharged V-6.”

5.3-liter EcoTec3 V8 engine
GM's decision to go the "tried and true" route may pay off in the end. Recent reports have suggested that while many manufacturers seem to ace the EPA's tests with turbocharged gasoline engines, most consumers aren't able to match the sticker numbers in the real world.

The Ford Atlas Concept previews the nexxt generation F-150
GM’s fun in the mpg sun, however, likely won’t last long. Ford is reportedly looking to trim up to 700 pounds from the next generation F-150, which will go a long way towards improving fuel efficiency. Ford showcased the use of active aero technology on its Atlas truck concept (which no doubt is a precursor to the next generation F-150), which boost highway fuel efficiency by 2 mpg.

Sources: General Motors [1], [2]

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RE: Ram 1500 still wins...
By tat tvam asi on 4/2/2013 12:15:45 AM , Rating: 3
Variable cylinder management makes more sense for trucks. Even a basic manual shut down of cylinders will go a long way in saving gas.

RE: Ram 1500 still wins...
By Argon18 on 4/2/2013 12:33:35 PM , Rating: 2
Your argument is flawed, because "gas" doesn't make sense in a truck. Hauling or towing or offroading does not require horsepower or high revs - the reasons to chose a gasoline engine.

Hauling, towing, and offroading require torque, and lots of it. There's a reason in most of the world, you cannot buy a gasoline truck. They only come in diesel, because that's what makes sense for a truck.

Putting a gasoline engine in a truck, is like putting a diesel engine into a Ferrari - it's silly and pointless and goes against the goals of the vehicle.

RE: Ram 1500 still wins...
By Spuke on 4/2/2013 1:06:23 PM , Rating: 2
Gas or diesel works well in trucks. Also, you need to read up on what hp and torque is cause clearly you don't understand the relationship at all.

RE: Ram 1500 still wins...
By BRB29 on 4/3/2013 9:08:08 AM , Rating: 2
That's true for the rest of the world except the US. We don't have diesel at every gas station and especially in the city. Some people don't use trucks for work and therefore it doesn't tow or haul much most of the time.
For some people, they just want to be able to haul the camping gear, sports equipment and the family on a trip. Some people wants it because they are single, have a motorcycle, and move frequently due to their job.

There's a lot of reasons why a gasoline truck exist.

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