2007 Chevy Uplander 3.9l V6 6-pass Cruise Control 64k Texas Direct Auto on 2040-cars

Auto blog

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

2016 Green Truck of the Year, Commercial Green Car of the Year finalists

Not only are commercial-grade haulers getting more green love lately, they're getting more different kinds of green love. The 2016 Green Truck of the Year, the second time the award has been handed out, is being decided by judges from Green Car Journal and the San Antonio Auto & Truck Show. This year the award is joined by the new 2016 Commercial Green Car of the Year, which crowns one of the little vans increasingly used by small business as cargo and delivery vehicles. The Green Truck of the Year finalists are the Chevrolet Colorado Duramax (pictured), Ford F-150, GMC Canyon Duramax, Nissan Titan XD, and Toyota Tacoma. The first three of those were on last year's list, but since they are completely new or upgraded for 2016 - Ford with its all-aluminum body, the General Motors twins with the new diesel Duramax engine - they qualify for entry again. The Ram 1500 EcoDiesel won last year. The Commercial Green Car finalists are the Chevrolet City Express, Ford Transit Connect, Mercedes-Benz Metris, Nissan NV200, and Ram ProMaster City. You can read more details in the presser below, and the awards will be announced in San Antonio sometime during the show from November 19-22. San Antonio Auto & Truck Show Announces 2016 Green Truck of the Year and Commercial Green Car of the Year Finalists SAN ANTONIO, Oct. 22, 2015 /PRNewswire/ -- Green Car Journal and the San Antonio Auto & Truck Show have announced finalists for the 2016 Green Truck of the Year™ and 2016 Commercial Green Car of the Year™ awards. The Green Truck of the Year™ nominees are the Chevrolet Colorado Duramax, Ford F-150, GMC Canyon Duramax, Nissan Titan XD, and Toyota Tacoma. Vying for the all-new 2016 Commercial Green Car of the Year™ award are the Chevrolet City Express, Ford Transit Connect, Mercedes-Benz Metris, Nissan NV200, and Ram ProMaster City. "Over the past few decades, new car models have benefitted from design and technology improvements that have brought higher fuel efficiency and greater levels of environmental compatibility," said Green Car Journal and CarsOfChange.com Editor and Publisher Ron Cogan. "With models like these ten deserving finalists, we're witnessing the pickup and light commercial vehicle field enjoying the same attention." The new Commercial Green Car of the Year™ award is part of an expanded awards program presented at this year's 2015 San Antonio Auto & Truck Show.

2021 Jeep Grand Cherokee L vs Big Three-Row Crossovers | Spec comparison

The three-row 2021 Jeep Grand Cherokee L is here, entering an ever-growing segment of big crossovers that Jeep has ignored since the Commander of the late 2000s. Of course, the Dodge Durango has basically been a three-row version of the current Grand Cherokee with Dodge styling and a different interior, so it's not like The Corporate Entity Formerly Known as Chrysler has been without a contender in the segment. Jeep is a stronger brand than Dodge, however, and the three-row midsize segment is stronger than those with two rows (there's a vast sales difference between the Chevrolet Traverse and Blazer, as well as the Honda Pilot and Passport). In other words, the Grand Cherokee L could be a very big deal. It is also, quite literally, a very big deal. As you're about to see, it is now the largest three-row crossover, besting the length, wheelbase and height of even the gargantuan Traverse. There's more to the story than that, however, so we put together the below comparison chart to show you how the new Grand Cherokee L lines up on paper versus the biggest three-row crossovers. That includes the 2021 Ford Explorer, 2021 Kia Telluride, 2021 Hyundai Palisade and 2022 Chevrolet Traverse. This group also represents some of the strongest entries in the segment as well as those we feel are most likely to be considered alongside the big Jeep. To that end, we also included the 2021 Lincoln Aviator in the chart since its base price is actually less than what we anticipate the luxurious, range-topping Grand Cherokee L Overland and Summit trim levels to start.  Engines and drivetrains Note the differences in curb weight here. The Grand Cherokee L has the highest base curb weight of the group apart from the high-lux Aviator, yet its 3.6-liter V6 has the least amount of power and torque. Therefore, it'll be surprising if it's not the slowest in the group. There's of course the Hemi V8 available on the top Overland and Summit trim levels, but again, a hefty curb weight works against it. At 5,330 pounds, the lightest V8-powered JGCL weighs 600 pounds more than V6-power Explorer Platinum and ST models. On the other hand, nothing can touch the Hemi Jeep's towing capacity, and only the 400-hp Aviator betters the Jeep's base V6. Its 6,200-pound towing capacity greatly outdoes the 5,000-pound limits of not only the Telluride, Palisade and Traverse, but most others in the segment as well.