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GM resumes production of its 3.0-liter turbodiesel straight-six

General Motors temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine in August 2021 due to a supplier shortage. Reports claimed the pause would last through 2021, but the engine is already back in production. Enthusiast website GM Authority learned from sources inside General Motors that the straight-six is once again coming off the assembly line at the Flint Engine Plant in Flint, Michigan. There's no official word on precisely what the problem was linked to and whether it was related to the on-going chip shortage that's wreaking havoc across the automotive industry. All we know is that the pause lasted for about two weeks. Called LM2 internally, the six is available in Chevrolet's Tahoe, Suburban, and Silverado 1500 and in GMC's version of these trucks. It's also an option in the Cadillac Escalade. It develops 277 horsepower at 3,750 rpm and a V8-like 460 pound-feet of torque at 1,500 rpm in every application, and it allows these big behemoths to post surprising fuel economy numbers. Fitted to a rear-wheel-drive Tahoe, the Duramax returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make it more efficient than a Blazer. Demand for the diesel-powered trucks is relatively high. While the shortage undoubtedly took a toll on sales, the Duramax represented 8% of Suburban sales and 6% of Tahoe sales in May 2021. There are no other diesel-burning full-size SUVs available new so they have the market to themselves. On the truck side, Ram still makes the EcoDiesel available on some 1500 trims but Ford abandoned the segment. Related Video: Featured Gallery 2021 Chevrolet Tahoe RST View 24 Photos Chevrolet GMC Truck SUV Diesel Vehicles

Recharge Wrap-up: GM, LG Chevy Bolt collaboration, Honda Energy Star plants

Green Car Reports details the relationship between GM and LG in the development and production of the Chevy Bolt. The unique relationship between the two companies began in 2008, and now sees LG producing a multitude of systems for the Bolt, many of which were designed by or with GM. LG's involvement in the Bolt has gone so deep as "defining what will this vehicle be, everything from how we are going to package it, what size it should be, what kind of performance it should have," according to Pam Fletcher, GM's Executive chief engineer for electrified vehicles. Forgoing the traditional automotive relationship for a more collaborative one doesn't just save money, but it also gives GM access to LG's suite of technologies and manufacturing capabilities. Read more at Green Car Congress. The EPA has awarded three Honda factories with Energy Star certification. The automaker's assembly plants in Marysville and East Liberty, Ohio have now earned Energy Star certification ten consecutive years. The Marysville plant added LED lighting, hydrogen-powered tow motors and forklifts, high efficiency HVAC and direct-fired water boilers. The East Liberty facility added new LED lighting and replaced a large water heater with a high-efficiency one. Honda's newest US plant, Honda Manufacturing of Indiana, installed LED lighting and used energy efficient features in its recent expansion. Honda also cites a culture of energy-mindedness – for every associate – for its success. "When everyone involved considers energy efficiency and how they can help the environment, results improve," says Karen Heyob, Honda's sustainability boss in North America. Read more from Honda. The student-led Associated Students of the University of Montana (ASUM) Transportation has ordered two Proterra electric buses. The 40-foot Catalyst Fast Charge buses will serve the campus, and will recharge with a semi-autonomous fast charger. "As part of our ongoing effort to innovate service, align with student advocacy and reduce our carbon footprint, we take great pride in our decision to go electric," says ASUM Office of Transportation Director Jordan Hess. "We hope this encourages – and challenges – other universities to seriously consider the economic and environmental benefits of zero-emission buses." Read more in the press release below. First Student-led Transit Agency in the U.S.

Recharge Wrap-up: Chevy teases Bolt driving range, China pursues EV subsidy cheaters

Chevy is teasing the Bolt's driving range, which it is set to reveal on Tuesday. It will certainly be able to travel more than 200 miles between charges, but the second and third digits in that value, as it stands today, are still question marks. On its Facebook page, Chevrolet is asking fans to try to guess the official range. Of course, Tesla fans have already started posting their own snide remarks in the comments. Chevy fans are certainly hoping to see the Bolt's range eclipse that of Tesla's upcoming Model 3, which the California-based automaker puts at 215 miles. See Chevy's post on Facebook to make your own guess, or check back there (or here at AutoblogGreen) for the official number once it is unveiled. Fuel cell company PowerCell Sweden says it has signed an agreement with a Chinese company to make range extenders for commercial trucks. The unnamed Chinese customer has placed an order and signed a memorandum of understanding with PowerCell Sweden, and the partners will develop methanol reformer fuel cell range extenders for electric distribution trucks. "Our unique expertise in fuel cells and reformer technology is receiving an increasing attention worldwide and we are truly pleased to get another Chinese order," says PowerCell Sweden Sales Director Andreas Boden. Read more at Green Car Congress, or from PowerCell. China is accusing major automakers of violating EV subsidy rules. After the country's Ministry of Finance penalized five companies with fines and, in one case, revocation of production license for subsidy cheats, China has since named 20 more potential violators, including Nissan, Hyundai, JAC, and a subsidiary of BYD. Of the first five companies to be punished under the investigation, Suzhou Gemsea Coach Manufacturing is having its production license revoked, while four others, including a subsidiary of Chery, are being fined for about half of the subsidies received. The scandal is bad new for China's subsidy program, which has helped spur sales of plug-in vehicles. Read more from Fortune, or at Hybrid Cars.