Gmc Sierra 3500 Crew Cab Dually Diesel 4x4 W/plow Mount 8ft Bed on 2040-cars

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Next-gen GMC Sierra spied with diesel power

The next generation of GM trucks is arriving soon, and we're expecting a huge leap forward over the current lineup. The Chevy Silverado and the GMC SIerra sell extremely well, but haven't done much to move the segment forward in a long time. The Ford F-150 has an all-aluminum body and turbocharged V6 power. The Ram 1500 gained a diesel and coil spring suspension. These spy shots show that diesel may be in the cards for GM. Some quick shots and copious use of flash show what is most likely a tank for diesel exhaust fluid and a diesel particulate filter, both necessary equipment for any modern diesel. It's unclear what form factor that engine will come in, though GM has a number of engines to choose from, including the 2.8-liter inline four that's found in the Colorado and Canyon, though that may be a little light duty for the Silverado and Sierra. Other rumors surrounding the trucks suggest a move to an aluminum cab while retaining a steel bed. That seems like a reasonable move for GM, even if the company was attempting to shame Ford for its move to aluminum a few years ago. Look for more news as early as the Detroit Auto Show in January. Related Video: Featured Gallery 2019 GMC Sierra spy shots View 21 Photos Image Credit: Spied Bilde Spy Photos Chevrolet GMC Truck

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

GMC considers adding more vehicles to broaden product line

GMC is considering expanding its product portfolio in the next 10 years to allow it to reach more potential buyers and grow sales, a top executive said Monday. The small and midsize sport-utility-vehicle segments are two possibilities, said Duncan Aldred, GMC sales and marketing vice president. He also said GMC won't make a car, preferring to reinforce its reputation as a maker of trucks and SUVs. "There's plenty of opportunities even if we define ourselves as a we do as a truck and crossover brand," he said. He wouldn't comment on the possibility of adding a Jeep Wrangler-fighter, though rumors have swirled for months that GMC is considering a product to compete with the iconic off-roader. "I can't confirm that ... everything's on the table," he said. He also said that it's possible GMC could get a unique set of underpinnings – all of its vehicles share platforms that are also used by Chevrolet – but it's not needed to differentiate his brand. "I'm very happy sharing underpinnings and everything else," he said. "All of the good-performing automakers do that." Speaking to journalists at a roundtable at General Motors headquarters in Detroit, Aldred said GMC received an investment from GM that is double what the brand has historically spent to fund its growth plans. Advertising spending alone will increase 50 percent this year compared with 2014. The brand rolled out a new ad campaign on Monday, called "Precision," that will underscore attention-to-detail and the premium features of GMC vehicles. Two of the commercials have a sporting theme, and the third focuses on modern menswear. GMC called it a "contemporary interpretation" of the brand's traditional positioning, and it will also continue to use its long-running "Professional Grade" tagline. The premium positioning of the ads come as buyers are increasingly outfitting their trucks as near-luxury vehicles. The percentage of buyers opting for the top-end Denali trim has increased from 17 percent in the middle of 2014 to 21 percent now. The goal is to get Denali to make up 25 percent of GMC sales by the end of 2017, Aldred said. Spurred by the higher Denali take-rate, the brand's transaction prices leapt by $3,000 last year. "It's [Denali] really kind of this jewel in the crown," Aldred said. GMC sales increased 11.3 percent in 2014 to 501,853 units, making it GM's-second-best-selling brand behind Chevrolet.