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Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

2016 Chevy Colorado and GMC Canyon recalled for opening console lids

The Basics: General Motors is recalling 9,200 examples of the 2016 Chevrolet Colorado with build dates between August 25, 2015 and September 24, 2015, and the 2016 GMC Canyon manufactured from August 28, 2015 to September 24, 2015. In total, 8,763 of these pickups are in the US, and the rest are in Canada or Mexico. The Problem: The console compartment lid could open in a crash, and the items inside the storage compartment might hit occupants during the accident. This fault puts the pickups out of compliance with the Federal Motor Vehicle Safety Standard. Injuries/Deaths: None reported. The fix: Dealers will replace the console compartment door latch assembly with an improved part. If you own one: GM has not yet told NHTSA when the repairs for these pickups begin. Related Video: RECALL Subject : Console Door may not Fully Latch/FMVSS 201 Report Receipt Date: DEC 01, 2015 NHTSA Campaign Number: 15V807000 Component(s): LATCHES/LOCKS/LINKAGES Potential Number of Units Affected: 8,763 All Products Associated with this Recall Vehicle MakeModelModel Year(s) CHEVROLET COLORADO 2016 GMC CANYON 2016 Details Manufacturer: General Motors LLC SUMMARY: General Motors LLC (GM) is recalling certain model year 2016 Chevrolet Colorado trucks manufactured August 25, 2015 to September 24, 2015, and GMC Canyon trucks manufactured August 28, 2015 to September 24, 2015. The affected vehicles have a console compartment lid latch assembly that may fail to keep the compartment door closed in the event of a crash. As such, these vehicles fail to comply with the requirements of the Federal Motor Vehicle Safety Standard (FMVSS) number 201, "Occupant Protection in Interior Impact." CONSEQUENCE: If the console compartment door does not remain closed in a crash, the contents stored in the console may strike the vehicle occupants, increasing their risk of injury. REMEDY: GM will notify owners, and dealers will replace the console compartment door latch assembly, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16370. NOTES: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

GM will stop reporting monthly U.S. vehicle sales

DETROIT — General Motors said on Tuesday it will stop reporting monthly U.S. vehicle sales, saying the 30-day snapshot does not accurately reflect the market, and will instead issue quarterly sales. GM will also no longer report monthly sales in China, its largest market, and Brazil. GM will provide monthly data to the U.S. Federal Reserve, industry associations and government agencies across the globe, but that data is not made public. Analysts and investors rely on monthly U.S. vehicle sales not just to track the performance of individual automakers, but as a barometer of the health of the world's second-largest auto market and as an indicator of consumer confidence in the U.S. economy overall. GM and its Detroit rivals Ford and Fiat Chrysler have relied heavily on sales of high-margin pickup truck and SUV sales to boost profits. GM's total U.S. sales, its second-largest market, are down 3.2 percent for the first two months of 2018, reflecting a 6.8 percent drop in retail sales to individual customers, the company reported last month. GM executives have expressed frustration that comparisons of monthly U.S. sales results among rival automakers are distorted by short-term discount programs, and by differences in strategy for selling vehicles in bulk to rental car fleets. "Thirty days is not enough time to separate real sales trends from short-term fluctuations in a very dynamic, highly competitive market," Kurt McNeil, U.S. vice president for sales operations said in a statement. GM's actions could prompt other automakers to also switch to quarterly U.S. sales reports. Major automakers will report March U.S. new vehicle sales on Tuesday. Until the early 1990s, most U.S. automakers released sales results every 10 days. The former Chrysler Corp. stopped reporting sales on a 10-day basis in 1990, and rivals followed suit over the next three years. GM executives are betting that investors will quickly adapt to receiving U.S. sales data every three months, as investors in other retail sectors already have. Retailers such as Walmart report sales on a quarterly basis. Reporting by Joe WhiteRelated Video: Image Credit: Reuters Earnings/Financials Green Buick Cadillac Chevrolet GM GMC US