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2015 Chevy Impala Bi-fuel burns CNG, starts at $37,385*

Currently, the only natural-gas-powered passenger car offered for sale by an OEM in the US is the Honda Civic Natural Gas. Starting this fall, that long-running CNG car will be joined by a CNG-burning 2015 Chevy Impala for both fleet and retail customers. General Motors announced today that the car will start at $37,385, plus an $825 destination charge. That comes to $38,210 before taxes and options. Those options include two trim lines, the base LS and the upper-level LT. Chevy doesn't break out the details in the press release announcing the price, but you can see the trim details for the standard gas-powered 2014 Impala here. Exact information on the 2015 models is not available just yet, but GM spokesman Chad Lyons told AutoblogGreen that the equipment that you see listed on the site for 2014 is "almost exactly the same" as what will be available for 2015. The 2015 Impala gets around 19 city mpg on CNG, but official EPA numbers are not yet available. That means the LS will come with 18-inch aluminum wheels, electric variable-assist power steering, projector-beam headlamps, and 10 air bags. The LT adds an eight-inch touch screen with MyLink, premium Cloth interior and dual-zone automatic climate controls. The cost for this upgrade is unspecified. For CNG purposes, we can ignore the numerical prefix used for the gas-powered LT trims, since that denominates the engine type, and all the CNG models use a 3.6-liter engine with hardened valves and valve seats that can better handle natural gas. The trunk capacity also drops from 18.8 cubic feet to 10 cu .ft. in order to fit in the CNG tank that holds the equivalent of 7.8 gallons of gas. That amount of CNG should move you 150 city miles, which is around 19 mpg, but official EPA numbers are not yet available. With the addition of the gasoline on board, the overall range is 500 city miles. The car burns CNG when available and switches to gas with "no interruption" either when the tank is empty or when the driver selects the gas tank. Find more details in the press release below. GM says the CNG Impala will will be available nationwide this fall. CNG is a growing fuel in the US, thanks in part to fracking. The Civic Natural Gas, which starts at $26,640, is growing towards a nationwide availability. Next year, for example, the Shell Eco-marathon Americas in Detroit will allow CNG for the first time. Chevrolet Announces Pricing of CNG-Capable 2015 Impala 2014-05-06 LONG BEACH, Calif.

GM recalling 686k Lambda-platform models for hatch repair

General Motors is recalling 686,287 units of its Lambda platform crossovers. On models equipped with a power rear hatch the system can potentially fail. This campaign includes the 2008-2012 Buick Enclave, 2009-2012 Chevrolet Traverse, 2007-2012 GMC Acadia, and 2007-2010 Saturn Outlook. According to GM's documents to the National Highway Traffic Safety Administration (as a PDF), dirt can get into a portion of the strut that holds up the hatch and cause the part to prematurely fail. There's a redundancy in place called the Prop Rod Recovery system that's designed to shut the liftgate if there's a malfunction. However, if the breakdown happens too quickly after the hatch is opened the prop rod might not work the way it's supposed to. If someone were in the way of the falling liftgate, they could be hurt. For the repair, dealers will update the software for the power liftgate actuator motor control unit to prevent the hatch from closing so quickly. They'll also check the operation of the system afterward. Related Video: RECALL Subject : Liftgate Struts may Fail and Liftgate may Fall Report Receipt Date: JUN 30, 2015 NHTSA Campaign Number: 15V415000 Component(s): STRUCTURE Potential Number of Units Affected: 686,287 All Products Associated with this Recall Vehicle Make Model Model Year(s) BUICK ENCLAVE 2008-2012 CHEVROLET TRAVERSE 2009-2012 GMC ACADIA 2007-2012 SATURN OUTLOOK 2007-2010 Details Manufacturer: General Motors LLC SUMMARY: General Motors LLC (GM) is recalling certain model year 2008-2012 Buick Enclave vehicles manufactured January 3, 2007, to February 29, 2012, 2009-2012 Chevrolet Traverse vehicles manufactured July 6, 2008, to February 29, 2012, 2007-2012 GMC Acadia vehicles manufactured September 15, 2006, to February 29, 2012, and 2007-2010 Saturn Outlook vehicles manufactured August 17, 2006, to March 18, 2010. The affected vehicles, equipped with the power liftgate option, have gas struts that hold the power liftgate up when open. These struts may prematurely wear and the open liftgate may suddenly fall. CONSEQUENCE: If the open liftgate unexpectedly falls, it may strike a person, increasing their risk of injury. REMEDY: GM will notify owners, and dealers will update the software for the power liftgate actuator motor control unit so that the motor will prevent the rapid closing of the lift gate, free of charge. The manufacturer has not yet provided a notification schedule.

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!"