2008 Gmc Sierra 1500 Crew Cab Sle 4wd Susp Lift 5.3l Rbp Wheels Buckets Leather on 2040-cars

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GM delays 3.0-liter Duramax diesel in Silverado and Sierra pickups

Stricter testing protocols around the world are making it harder for automakers to predict launch timelines. GM is the latest to get caught in emissions nettles, the Detroit carmaker forced to delay the launch of its new Duramax 3.0-liter inline-six diesel for the Chevrolet Silverado 1500 and GMC Sierra 1500. That's what company reps told dealers in a memo seen by Automotive News this week. Dealers and buyers had been promised the Flint, Mich.-built oil-burner in early 2019, but AN wrote that the EPA certification hiccup has turned into a "slight delay." A GM spokesman told Motor1, "[We] did not attribute [the delay] to a single entity, as the truth is this is a collaborative effort between GM and several government entities. We will make the 2020MY Duramax available for dealers orders soon, and expect to deliver the first trucks to customers soon after emissions testing is complete." We know the new 3.0-liter Duramax diesel has 277 horsepower and 460 pound-feet of torque, outdoing Ford's 3.0-liter PowerStroke diesel by 27 hp and 20 lb-ft. But without final EPA paperwork, GM can't release the numbers that will show how the two engines stack up when considering fuel economy and tow ratings. The certification process has been sticky for a few other makers of late, especially since the Volkswagen Group situation in 2015. BMW had to delay the launch of four diesel models in 2016 over EPA testing. The new Ram 1500 dribbled out in a trickle last year for reasons thought to deal with EPA testing, coming as it did a year after the EPA investigated Ram's EcoDiesel engines in 2017 and 2018. More recently, WLTP testing in Europe caught out just about every automaker over there. Since we're almost halfway through 2019, the delay until the 2020 model year is only a few months. Still, GM told dealers to cancel any orders for the engine for this model year. Dealers will need to resubmit the orders once opening begins, but GM hasn't said when production will begin other than "soon." The company said that it will offer 2020-model-year replacement vehicles to customers and dealers. If prices hold into the next model year, the 2020 Silverado 1500 and Sierra 1500 with the inline-six diesel will come at a $3,890 premium over the 2.7-liter turbo four-cylinder, and a $2,495 premium over the 5.3-liter V8.

GMC Hummer EV infotainment built with Unreal Engine used by 'Fortnite' and 'Rocket League'

We're only a couple weeks away from the reveal of the GMC Hummer EV truck and SUV. And we're expecting a lot of boasting about impressive capability and unique features. What we weren't expecting was for its infotainment system to be built on a video game engine. That's the news that has come out of Epic Games, creators of Unreal Engine, the basis of the Hummer's infotainment system. If you've been an avid video gamer anytime in the last 20 years, Unreal Engine should be recognizable. The first version of it powered Epic's "Unreal" and "Unreal Tournament" games, and more recent versions power multiplayer hits such as Epic's "Fortnite" and Psyonix's "Rocket League." The engine has been licensed out to countless other game developers for titles by both indie developers and large game companies. But its use in the GMC Hummer will be the first time it has powered a production car's infotainment system. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Epic didn't say which version of Unreal Engine is being used in the Hummer. Presumably it's a version of Unreal Engine 4, since Unreal Engine 5 hasn't been released yet. Also, while Epic released a trailer announcing the partnership and showcasing Unreal's 3D rendering and menu developing tools, it doesn't give us a peak at what the infotainment and instruments of the Hummer will look like. The company does tout fast boot-up times, powerful graphics, and over-the-air updates as useful features included with Unreal. But for a clear look at the final product, we'll have to wait for the October 20 reveal. Related Video:

GM 6.2L EcoTec V8 rated at 21 mpg by the EPA

General Motors is already laying claim to best-in-class power for its new 6.2-liter V8 that will be offered in the 2014 Chevy Silverado and GMC Sierra this fall, and now it has released fuel economy numbers for the big engine. Available as an option on the Silverado LTZ and High Country (shown above) models as well as the the Sierra SLT and Denali trims, the 6.2L EcoTec3 V8 will return 15 miles per gallon in the city and 21 mpg on the highway on rear-wheel-drive trucks; these numbers drop by one mpg each on four-wheel-drive models.
These estimates are in addition to the engine's 420 horsepower, 460 pound-feet of torque and max trailering capacity of 12,000 pounds, and considering all that power it's not terribly far away from the fuel economy of GM's equally new 4.3-liter V6 and its rating of 18 mpg city and 24 mpg highway. This announcement comes just days after a report indicated that GM is unable to keep up with the demand of the 5.3-liter V8 in the fullsize Chevy and GMC trucks due to supplier issues. GM's official press release for the 6.2-liter V8's fuel economy is posted below.