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Chevy says not to look at the 2019 Silverado's fuel economy rating

The 2019 Chevy Silverado is hitting dealerships soon, and one of the most notable changes for the new full-size pickup is the addition of a 2.7-liter turbocharged inline-four. The engine replaces the naturally-aspirated 4.3-liter V6 in volume consumer models like the Silverado LT and promises more power, less weight and — most importantly — better fuel economy. The thing is, the gains in efficiency haven't been as dramatic as some might have hoped, especially when stacked up against competitors from Ford and Ram. As Automotive News reports, GM's response is a little murky. First, let's talk numbers. We're pulling all figures from FuelEconomy.gov, the official U.S. government source for fuel ratings. Fuel economy numbers on trucks vary greatly based on a number of factors. Bed and cab configuration play a part, but so does a four-wheel-drive system. You also have to factor in tires, transmissions, rear-axle gearing, hybrid systems and cylinder deactivation. Things like that can make the difference between best- and worst-in-class. The EPA's website doesn't give enough information a lot of the time, so there's really no easy way to compare apples-to-apples. First, take a look at the ratings for the 2019 Silverado. A 2.7-liter model with two-wheel drive is rated 20 city, 23 highway and 21 combined. That's both better and worse than a two-wheel drive 2018 Silverado with the 4.3-liter V6 (18 city, 24 highway and 20 combined). The updated 2019 Silverado with a 4.3-liter V6 has yet to be rated. With less weight and a smaller engine, many hoped Chevy would make bigger gains. It's unusual to see any decrease in a fuel economy metric these days. GM says that it's not done tuning the new 2.7-liter engine, so fuel economy could theoretically increase. Expanding further, a V8-powered 2019 Silverado (17 city, 24 highway and 19 combined) actually gets better highway fuel economy than a turbocharged four-cylinder powered truck in certain configurations, even if the latter has a better overall average. But that's only with two-wheel drive, the 8-speed transmission and cylinder deactivation. A Silverado with the 5.3-liter V8 and a 6-speed automatic is rated at 15 city, 22 highway and 17 combined. The biggest issue with the Silverado 2.7-liter doesn't come from within GM itself but from Ford and Ram. GM cites the Ford F-150 with the 3.3-liter V6 and the Ram 1500 with the 3.6-liter V6 as the closest competitors to its new 2.7-liter inline-four.

Recharge Wrap-up: Renault Zoe recall, Proterra buses log 2M miles

Renault is recalling 10,649 examples of its Zoe electric car for potential brake hose failure. Cars built at the company's Flins factory between the Zoe's 2012 introduction and October 6, 2014 - a quarter of all Zoes ever built - are subject to the recall, though no accidents have been reported from rupturing brake lines. Recalled vehicles will have the brake hose positions inspected and, if need be, fixed. Read more from Reuters. Proposed legislation in Massachusetts would make the state even more EV friendly. While the state already encourages EV adoption with a $2,500 rebate incentive, the new bill would give battery electric vehicle drivers HOV lane access. Additionally it would set up a standard building code for EV chargers, and allow EV-only parking spaces. "With decreased gas prices, a 10 percent increase in vehicle miles traveled over the last 20 years, and a carpool rate below the national average, we must address personal vehicle use directly as part of our transportation emissions reduction strategy," says Rep. Frank Smizik. Read more from Teslarati. The New York Daily News has named the 2016 Chevrolet Volt as its "Green Machine of the Year." Seamless operation, peppiness, and a nice suite of equipment make it a top choice for the publication. "The 2016 Chevrolet Volt is all new, inside and out, and takes the plug-in hybrid segment to another level, thanks to its increased EV range, updated cabin, and more efficient gas-powered engine," writes Daily News Autos writer (and all-around good guy) Nick Kurczewski. Honorable mentions go to the Tesla Model S, BMW i3, Toyota Prius, and the hydrogen-powered Toyota Mirai. Read more from the Daily News, or at Clean Technica. Proterra electric buses have accumulated 2 million miles of revenue service. That equals 3,800 tons of carbon emissions that have been prevented and 420,000 gallons of fuel unburned. Proterra says it has 63 buses in service in 15 cities, and that it is ramping up production to meet growing demand. "This latest milestone exemplifies the economic, environmental and civic value of electric mass transit," says Proterra CEO Ryan Popple, "and demonstrates to the transit agencies that diesel - often viewed as a necessary evil - is no longer necessary." Read more at Inside EVs. Evercar, a unique EV carsharing service, has found success in Los Angeles. Evercar bills itself as carsharing for rideshare and delivery drivers.

GM Recalling Another 2.7 Million Vehicles In Five Separate Campaigns

The recalls keep rolling in from General Motors, evidently keen to avoid repeating the mistakes of the ignition-switch debacle and clean house. This time they're all coming at once, with five separate recalls announced together covering approximately 2.7 million vehicles. The largest of the five actions involves over 2.4 million units of the previous-generation Chevrolet Malibu and Malibu Maxx, Pontiac G6 and Saturn Aura in order to fix brake light wiring harness, which have been found to be susceptible to corrosion. The recall is separate from the 56k Aura sedans which GM recently recalled over faulty shift cables, not to mention the previous massive recall of 1.3 million vehicles – some of them the same models – but appears to have resulted from the National Highway Traffic Safety Administration investigation that started with the G6 almost a year ago. The second-largest campaign involves the 2014 Chevy Malibu, specifically those fitted with GM's 2.5-liter engine and stop/start system, approximately 140,000 examples of which has been found to have problematic brakes. The issue does not appear to be connected to the recall of 8k Malibu and Buick LaCrosse sedans (also involving brake woes) which we reported upon last week. Four crashes have been reported in such models, but GM admits it's not yet clear if the problem was a contributing factor in the accidents. A further 112k Corvette models from the 2005-2007 model years are being called in for problems with their low-beam headlamps resulting from a flexing relay control circuit wire that's not meant to bend. GM says it is "aware of several hundred complaints" about this issue, but notes that there have been no reports of related accidents. In addition, over 19k examples of Cadillac CTS from the 2013 and 2014 model years are being recalled over windshield wipers that might not work after a jump start. Finally, GM is also bringing in 477 examples of its 2014 Chevy Silverado, Tahoe and GMC Sierra (though not the Yukon) to fix a problem with a tie rod in its steering rack. As ever, all recall repairs will be performed free of charge, and GM is now estimating that recall-related actions this quarter will result in an estimated $200-million charge against its second-quarter earnings. Read the full announcement from GM below for further details.