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GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

Chevrolet Malibu gets aggressive redesign for 2016

Cars like the Ford Fusion, Kia Optima and Chrysler 200 have recently raised the styling bar in the midsize sedan game is. In that regard, the rather anonymous Chevrolet Malibu has suffered in recent years. That no longer appears to be an issue with the 2016 Malibu, which is simply caked with interesting elements. The wide, aggressive grille, expressive headlights and angled LED running lamps make the Malibu look like the Impala's much angrier little brother. In back, the Impala inspiration is there, but like the fascia, it's noticeably more aggressive, with a sharper cant to the taillights and a pair of large, integrated dual exhausts (at least on the 2.0-liter, turbocharged model being featured by Chevy). Designers also worked to give the 'Bu a bit more character in the profile, adding a pair of character lines to cut back on the last-gen car's slab-sided looks. While the exterior could almost be described as sporting, the brown-and-beige color scheme in the cabin is noticeably more relaxed. A large, central MyLink system sits atop the dash, while drivers will also have access to a dedicated display in the instrument cluster. A thick-rimmed, three-spoke steering wheel is a bit on the large side, but still looks like a nice piece to work. You can read a lot more about the new 2016 Malibu in our original post from early this morning. But before you do that, have a look at our full gallery of live images from the floor of the Javits Center. All-New Malibu is Larger, More Technological and Efficient New hybrid sedan projected to offer combined rating north of 45 MPG DETROIT – Chevrolet today introduced the all-new 2016 Malibu – a completely restyled midsize sedan engineered to offer more efficiency, connectivity and advanced safety features than ever. An all-new hybrid powertrain, which leverages technology from the Chevrolet Volt, will help offer a GM-estimated combined rating north of 45 mpg. The Malibu's standard 1.5L turbo powertrain is projected to offer 37 mpg highway. The 2016 Malibu is also longer and lighter, with more interior space and improved fuel efficiency. Its wheelbase has been stretched close to four inches (101 mm), and it is nearly 300 pounds (136 kg) lighter than the current model. "Midsize customers tell us they want great fuel economy, connected technologies, wrapped in a gorgeous exterior. This is exactly what the 2016 Malibu was engineered to do," said Jesse Ortega, Malibu chief engineer.

Ultra-luxury land yachts from Cadillac and Rolls-Royce | Autoblog Podcast #752

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by News Editor Joel Stocksdale. In this week's news, we about a pair of ultra-luxury electric cars, the 2024 Cadillac Celestiq and Rolls-Royce Spectre. We also cover the 2024 GMC Sierra EV and 2024 Chevy Trax, plus some of the reveals from the Paris Motor Show. The show is capped off with a discussion about the electric cars Greg Migliore has driven for the North American Car and Truck of the Year Awards: the Rivian R1S SUV and Lordstown Motors Endurance pickup truck. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #752 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2024 Cadillac Celestiq 2024 Rolls-Royce Spectre 2024 GMC Sierra EV 2024 Chevy Trax Paris Motor Show: Jeep Avenger EV Cars we're driving 2023 Rivian R1S 2023 Lordstown Motors Endurance Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video: