2011 Gmc Sierra Denali 3500 Crew Cab Dually, 6.6l Duramax Diesel, 4x4, 1 Owner on 2040-cars

Auto blog

GM's fullsize SUVs boost highway mileage by nearly 10 percent

We met the redesigned 2015 versions of the Chevrolet Suburban and Tahoe, and the GMC Yukon and Yukon XL at the 2013 LA Auto Show. Improved gas mileage numbers have been announced to go along with the improved exteriors and interiors, with city mileage improving by seven percent and highway mileage going up by nearly ten percent; you'll now get 16 miles per gallon in the city and 23 on the highway.
The only applies to models with the 5.3-liter engine, though, not the premium Yukon Denali and Yukon XL Denali SUVs with the 6.2-liter motor. Still, the 5.3 gets you more power than previously, with 355 horsepower and 383 pound-feet of torque underfoot, on top of the improved fuel economy numbers. The 6.2-liter sticks with official mpg ratings of 15 highway, 21 city. There's a brief press release below with words straight from the horse's mouth.

GMC confirms Hummer EV will be joined by an electric Sierra, or Sierra-like, pickup

GMC will step into the electric vehicle arena for the first time when it begins building the Hummer EV in 2021. While it's not planning on becoming an electric-only brand, it has more battery-powered models in the pipeline. "There will be an all-electric Sierra pickup, but no timeline yet. But, the plan is to make it electric; this whole electric thing is a moving target," Lynn Thompson, the president of a Buick-GMC-Cadillac dealership in Missouri, told the Detroit Free Press. He said executives revealed those plans during a national dealer meeting. What remains to be seen is whether the truck will be an electric variant of the Sierra as Thompson said, or if it will arrive as a standalone electric truck with Sierra-like dimensions and capabilities. Sister company Chevrolet is also planning to launch an electric pickup in the coming years, and it strongly hinted it will take the second route. Its entry into the segment won't look like a Silverado, and nothing seriously suggests it will be badged as one. It will also be interesting to watch how GMC ensures that the truck doesn't overlap with the Hummer EV, which will exclusively be offered as a four-door pickup with a relatively short cargo box when it arrives in stores as a 2022 model. Our crystal ball tells us the Hummer will be marketed as a more expensive model aimed at weekend adventurers who want to make a statement, while the Sierra-like model will be cheaper and primarily aimed at buyers who merely want a truck, whether they're commuters, contractors, or fleet operators. Chevrolet's entry into the segment will slot beneath these two models. General Motors used this strategy nearly 20 years ago to keep the Hummer H2, the GMC Yukon, and the Chevrolet Tahoe in separate corners of the same room. GMC's electric truck could share powertrain and chassis components with the Hummer EV. It might also be built in the same Hamtramck, Michigan, factory that parent company General Motors is funneling $2.2 billion into. Regardless of the path it takes, GMC is not going all-electric. "[GMC boss] Duncan [Aldred] said we're certainly not going to abandon our internal combustion engine vehicles because that's our core business, and that was good to hear. It's to let people know they're not going down the same road as Cadillac," a dealer who asked to remain anonymous said. Cadillac might go EV-only by 2025, starting with a crossover named Lyriq, and many of its dealers have refused to spend $200,000 on upgrades.

2020 GMC Acadia refresh brings a new engine, AT4 trim level

It's mid-cycle refresh time for the GMC Acadia, and the updated 2020 model kicks off its changes with a new face. It has a square-jawed grille seemingly pulled straight off the Sierra full-size pickup, and the size is amplified by the slender new LED headlights on either side. At the rear, the LED taillights are taller and more chiseled. A new AT4 trim level adds more visual distinction with black trim and wheels, plus all-terrain tires to make it a little more capable off road. The AT4 also boasts standard all-wheel drive. Under the revised skin, the Acadia hides one of two carryover engines, or a new turbocharged 2.0-liter inline-4. This new engine makes 230 horsepower and 258 pound-feet of torque with the help of a twin-scroll turbocharger. To make it more frugal, it's able to deactivate two of its four cylinders. The turbo engine is standard issue on the SLT and Denali trim levels. The carryover engines include a naturally aspirated 2.5-liter 4-cylinder making 193 horsepower and 188 pound-feet of torque, and a naturally aspirated 3.6-liter V6 making 310 horsepower and 271 pound-feet of torque. The V6 is standard equipment on the AT4 trim. No matter the engine, all 2020 Acadias get a 9-speed automatic transmission. The new transmission also ditches the current Acadia's mechanical shift lever in favor of an electronic shifter with the Terrain's mix of buttons and triggers. It does free up space between the seats, but the button arrangement is still as strange as it was when we first saw it in the smaller crossover. There are a handful of other little upgrades to mention. The suspension has been revised for greater comfort; the infotainment has been revised with a bigger screen, USB-C inputs and customizable profiles; and wireless phone charging is now an option. The updated Acadia goes on sale this fall, and pricing will probably be announced close to launch.