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2021 Chevy Silverado, GMC Sierra fuel economy to go down due to global chip shortage

Production of the 2021 Chevy Silverado and 2021 GMC Sierra is continuing, but the global semiconductor chip shortage is resulting in a mid-year change. Or rather, an omission.  Basically, the availability of cylinder deactivation for the 5.3-liter V8 will be significantly reduced, resulting in a reduction of 1 mpg combined for affected models. This applies whether that engine has the six- or eight-speed automatic, as well as to both the regular Active Fuel Management and the more advanced Dynamic Fuel Management cylinder deactivation systems. DFM does remain with the pairing of 5.3-liter V8 and 10-speed automatic that comes standard on the LT Trail Boss and High Country. "Due to the micro controller shortage, the components that control AFM/DFM in the engine control module (ECM) have been removed," GM spokesperson Michelle Malcho told Autoblog. She also indicated that the engines will still have the AFM/DFM hardware in place, but that GM will not allow activation of the systems in the future with an ECM change.  Malcho also confirmed to Autoblog that the Silverado and Sierra's other engines will continue to have AFM and DFM, including the 2.7-liter turbo inline-four, 4.3-liter V6 and 6.2-liter V8. In an earlier statement to Reuters, she declined to say the volume of vehicles affected. "By taking this measure, we are better able to meet the strong customer and dealer demand for our full-size trucks as the industry continues to rebound and strengthen," Malcho wrote Reuters in an email. The change runs through the 2021 model year, she said. Malcho told Reuters it would not have a major impact on the Detroit automaker's U.S. corporate average fuel economy (CAFE) numbers. "We routinely monitor our fleet for compliance in the U.S. and Canada, and we balance our portfolio in a way that enables us to manage unforeseeable circumstances like this without compromising our overall (greenhouse gas) and fuel economy compliance," she said. GM's fleetwide fuel economy in the 2018 model year was 22.5 miles per gallon and was projected to rise to 22.8 mpg for 2019, according to a report by the Environmental Protection Agency. To meet federal CAFE requirements, automakers like GM often use credits from either earlier years where they faced less stringent rules and performed better than the requirements or buy credits from other automakers. GM said last month the chip shortage could shave up to $2 billion from this year's earnings.

Weekly Recap: Geneva's splendor reflects growing demand for ultra-luxury cars

Geneva is one of the most glittering auto shows in the world, but the list of high-powered and bespoke luxury cars was decadent this year even by the rich standards of the Swiss exhibition. It's great for enthusiasts to revel in the flame-throwing Aston Martin Vulcan, the racing-inspired elegance of the Bentley EXP 10 Speed 6 concept and the insane performance of the Lamborghini Aventador LP 750-4 Superveloce, but there's a reason for all of this opulence: the luxury market is big business. And it's growing. IHS Automotive forecasts that so-called ultra-premium sales will nearly triple this decade from 123,000 to 353,000 units around the world. The estimate includes brands like Aston Martin, Bentley, Ferrari and Rolls-Royce, but doesn't count BMW, Mercedes and Audi, which offer less expensive models in addition to their high-end flagships. Though IHS includes Porsche and its relatively large volume in the study, the ultra-premium segment is still set grow at about the same rate, even without the German automaker's figures. So what is propelling all of this growth in the most expensive segment of the auto industry? Put simply, there's more rich people. IHS Automotive principal analyst Tim Urquhart pointed to economic expansion in China, market recovery in the United States and a surge in the lucrative technology sector as contributing factors. This dovetails with a research report by UK-based Oxfam, an international relief organization, which found the world's richest one-percent owned 48 percent of global wealth in 2014, and it's expected to increase to more than 50 percent by 2016. View 17 Photos Carmakers are moving quickly to capitalize with new products, expanding their portfolios with low-volume speedsters like the 800-hp V12 Vulcan at Geneva, and plans to enter new segments, like Rolls-Royce's strategy to make an SUV. "Ultra-premium carmakers are looking to explore ways of growing their product offerings, and thus their bottom lines, in this most potentially profitable of segments," Urquhart wrote in a report on the Geneva show. In a nutshell, there are more choices for people with more money. It's a good time to have expensive taste. Other News & Notes 2016 Mazda MX-5 Miata production launches It won't be long now. The 2016 Mazda MX-5 Miata arrives later this year, and it's officially in production. Mazda announced this week that the roadster began rolling off the assembly line at its Ujina factory in Hiroshima, Japan.

Diesel details: Comparing Ram 1500 EcoDiesel, Chevy Silverado Duramax, Ford F-150 Powerstroke

With specifications for the 2019 Ford F-150 Power Stroke diesel already out, and the details on the 2020 Ram 1500 EcoDiesel and Chevy Silverado Duramax (and its GMC Sierra twin) trickling out, we felt it was a good time to start comparing the full-size trucks' light-duty diesels. Bear in mind, we've only driven one of these new diesel trucks, so we'll be sticking to numbers for now. Some numbers haven't been announced yet, either, but stay tuned, because we'll be updating this post with additional specifications as they become available. And if you want to compare any other versions of these trucks with other vehicles, be sure to check out our comparison tool. Now let's start comparing, starting with our big chart of numbers below. As we can plainly see, these trucks are quite closely matched. Each one has six cylinders, a displacement of 3.0 liters and a turbocharger to boost it. The output of each is somewhat close, too. The Ram 1500 EcoDiesel is the torque king at 480 pound-feet, 20 more than the GM trucks and 40 more than the Ford. The GM trucks win on power, though, with 277 ponies, 17 more than the Ram, and 27 more than the Ford. GM does report that you get their trucks' peak 460 pound-feet of torque from 1,500 rpm to 3,000 rpm, whereas the others only report peak torque at a particular point in the rev band, but all of these trucks should have wide, flat torque curves as you would expect from modern turbodiesels. 2020 Ram 1500 EcoDiesel View 8 Photos Engine output is only one part of the truck performance equation. We also have towing and payload capacity, as well as fuel economy. With towing, the Ram 1500 is the current leader with a maximum capacity of 12,560 pounds. That tops the Ford F-150's 11,400-pound tow rating by well over 1,000 pounds. The F-150 can carry 2,020 pounds in its bed, but we don't know yet whether that's better or worse than the Ram or the GM trucks. We also don't have numbers for the GM trucks' towing capacities. View 9 Photos As for fuel economy, the Ford F-150 manages a thoroughly impressive 22 mpg in the city and 30 on the highway with two-wheel drive. Choosing four-wheel drive drops those numbers to 20 and 25 respectively. The fuel economy numbers for the Ram, Chevy and GMC haven't been revealed yet, but for some comparison, we can look at the old Ram EcoDiesel. That truck's best fuel economy was 20 in the city and 27 on the highway with two-wheel drive.