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2021 GMC Yukon starts at $51,955, just $100 more than outgoing model

The 2021 GMC Yukon and Yukon XL have prices, and they're bargains considering the upgrades the new model delivers. The base Yukon SLE starts at $51,995 after the $1,295 destination charge, a $100 premium over the current model. The extended wheelbase Yukon XL in base SLE trim starts at $54,695, the same price as the outgoing model. The price for all-wheel drive stands pat for trims that make it an option, at $3,000. Prices for the two-wheel drive Yukon and Yukon XL trim steps are below, with price differences compared to the 2020 models. Keep mind that the new AT4 trim comes standard with AWD, so the AT4 is in a sense closer in price to the SLT and further from the Denali than it appears here: Yukon SLE: $51,995 (+ $100) Yukon SLT: $59,095 (- $810) Yukon AT4: $66,095  Yukon Denali: $69,695 (+ $800) Yukon XL SLE: $54,695 (No change) Yukon XL SLT: $61,795 (No change) Yukon XL AT4: $68,795 Yukon XL Denali: $72,395 (+ $600) The drop in price on the Yukon SLT is in comparison to the 2020 Yukon SLT Standard Edition trim, not the lower-spec SLT trim. The new Yukon comes in at $1,700 more than the 2021 Chevrolet Tahoe, the same price difference in effect between the Yukon XL and Suburban. The standard Yukon is powered by a 5.3-liter V8 with 355 horsepower and 383 pound-feet of torque, the same specs as found in both the Tahoe and Suburban. The Yukon Denali trims, as with the High Country trims on the Chevy twins, outdo the 5.3-liter with a 6.2-liter V8 making 420 hp and 460 lb-ft. Both engines shift through a 10-speed automatic. Stuffing a Yukon XL Denali with options can take the MSRP beyond $80,000, thanks to available features like the panoramic sunroof, rear seat entertainment, air suspension, and Magnetic Ride Control Suspension.   We're still awaiting pricing for the coming 3.0-liter Duramax inline-six with 460 pound-feet of torque, which we expect closer to the on-sale date for the new full-sized SUVs.  Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Bronco, Yukon, Hummer and a CES recap | Autoblog Podcast #610

GM files for Z71 Trail Boss trademark

Try as they might to keep their plans a secret, automakers have their hands tipped through a variety of methods – be they through loose lips, spy shots or patent and trademark applications. That's how we know, in this instance, that General Motors is working on (or at least considering) an off-road machine wearing the name Z71 Trail Boss – the name which our compatriots at AutoGuide.com tell us that GM has registered for use on light-duty trucks. Now if that alphanumeric designator sounds familiar, it should. GM has long used it to designate the off-road packages on many of its body-on-frame trucks from Chevy and GMC. These days you can order a Z71 package on the Chevy Colorado, Silverado, Tahoe and Suburban and on the GMC Canyon, Sierra and Yukon. The package typically includes components like a beefed-up suspension bits, high-capacity air cleaner and underbody protection plates. The Trail Boss designator would seem to suggest something further reaching than a suspension package, though. Just what it would entail we don't know; minds immediately start running toward Chevy or GMC going after the Ford F-150 Raptor, but we'll likely be looking at something closer to the Trailhawk packages Jeep offers on the likes of the Renegade and Cherokee. Featured Gallery 2015 Chevrolet Tahoe Z71 View 16 Photos News Source: AutoGuide.comImage Credit: Chevrolet Chevrolet GM GMC Truck SUV Off-Road Vehicles patent trademark

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).