2015 Gmc Yukon Slt on 2040-cars

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Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

2015 Chevy Colorado, GMC Canyon airbag problem causes recall

The recall affects 2,432 vehicles, though only 138 had actually reached consumers.
General Motors quickly fixed an airbag-wiring problem with the 2015 Chevrolet Colorado and GMC Canyon, but is still conducting a small recall to repair the midsize trucks that are launching this fall.

2019 GMC Sierra 1500 taillights revealed in teaser

With just one day before the GMC Sierra's reveal, GMC decided to show one last teaser of the full-size pickup truck. This time it shows the tail of the truck. And, by that we mean just the taillights and the badge, and playing with Photoshop revealed nothing else. The same goes for a profile-view teaser released slightly earlier than the rear-view image. Still, this is the clearest look we've had of the Sierra's rear lights, and they have a similar wrap-around element, possibly LED-lit, to that of the smaller GMC Canyon. It also looks like the lights will look wider from the rear than those on the Silverado, mainly because the GMC's lights don't have an indentation in the middle. GMC also released a teaser of the truck's profile. Both the head and taillights wrap farther around the sides than on the Silverado. The headlights are also less square than the outgoing Sierra, giving the truck a slightly sleeker look. We'll see the whole truck and get details on what powers it on March 1 when it's fully revealed. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.