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OnStar to offer 90-day driving assessment, possible insurance discount

General Motors has announced a brace of new features for OnStar, two of which could help you save money assuming you're willing to sign over some (more) personal details. The first is a driving assessment program in which OnStar takes note of certain driving parameters for 90 days, then provides the driver feedback on their driving, both individually and when compared to other drivers in the program, as well as driving tips. Think of it as OnStar's ICE version of the Nissan Leaf's CARWING feature that compares how efficient your electric driving is compared to other BEV drivers. In this case, though, certain drivers will have the chance to share their assessment with Progressive Insurance, and if the numbers are right they might get a "driving-based" discount from the insurance company. The assessment program is voluntary, and requires opting in. It will be available this summer on all new GM cars and some GM vehicles back to 2013. In case this sounds like Big Brother, let's not forget that Big Brother is already here and moved in so long ago that he's a member of the Kiwanis club and is hosting neighborhood block parties. Progressive already has a million enrollees in a program called Snapshot that tracks OBD II data to offer usage-based insurance to provide annual pricing based on how much you drive your car, with discounts of up to 30 percent. The OnStar effort is just another way to do that. The second feature is proximity offers through AtYourService, which notifies drivers to deals and information on their driving route and provides coupons from RetailMeNot and Entertainment Book. Beyond that, a deal with Priceline will let OnStar agents book hotels for you starting this year, there's a tie-in with Dunkin' Donuts, too, but we're fuzzy on those benefits, and third new feature lets Chevrolet owners know when certain parts need replacing. News Source: Detroit NewsImage Credit: AP Photo/Carlos Osorio Chevrolet GM Technology

GM recalls 8,500 Chevrolet Malibu models for rear suspension glitch

According to a letter from General Motors to the National Highway Traffic Safety Administration, flaws in the build process of the 2013 Chevrolet Malibu have led to the recall of 8,519 cars. Units built between December 6, 2011 and January 15, 2013 may have been assembled with rear suspension cradles that had insufficient torque applied to certain bolts. That out-of-spec assembly could lead to issues ranging from slight noises to a loss of vehicle control.
The problem was first noticed in December of last year by a GM test fleet driver and eventually tracked back to the improperly torqued bolts on the suspension cradle assembled through July 2012 by a supplier located not too far from the Malibu's Detroit/Hamtramck Assembly Plant. Since an official NHTSA recall notice has not been issued yet, it isn't clear whether or not Detroit-built Malibus were the only ones affected (the 2013 Malibu is also built at GM's Fairfax Assembly Plant in Kansas City, Kansas). Dealers will fix the problem by inspecting vehicles for proper torque specs, retightening if not within specs and, in some cases, perform a rear-wheel alignment.

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.