1963 Buick Riviera Base Hardtop 2-door 6.6l on 2040-cars

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GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.

New Buick Envision model spotted in China, expected here this year

At GM Capital Markets Day in February, GM North America president Barry Engle said the U.S. market can expect "updated models of Chevrolet Equinox and Traverse, Buick Envision and Enclave, as well as GMC Terrain." We've seen the Equinox and Traverse, and although we weren't aware, we've seen the Envision. Buick showed an EV crossover concept in 2018 called the Enspire, and it was thought to preview an eventual production model called the Enspire that's been spotted in various places testing under heavy camouflage in the U.S. GM, in fact, applied to trademark the Enspire name twice in the U.S. The model's final production form got an early reveal in China thanks to the Ministry of Industry and Information Technology, and according to GM Authority, a branding redirection has led to the crossover being called the Envision. Assuming this is the model that comes to the U.S., it will share dealer space with the current Envision imported from China. Motor1 writes that Chinese site Auto Home alleges the name Envision S will distinguish the new product, and the tailgate in the low-res photo plausibly shows an S after the model name. That doesn't mean it would get the S suffix here, though. It's not clear if the coming crossover grows in size compared to the standard Envision the way the Encore GX expanded a touch over the Encore. The marquee difference will be that the new Envision is more luxurious in looks, equipment, and features. There are few details, but it's thought the Envision S sits on the same E2 platform as the Cadillac XT4, and will use the same 2.0-liter turbocharged four-cylinder in the Cadillac paired with the automaker's nine-speed automatic. In the XT4, that mill produces 237 horsepower and 258 pound-feet of torque, but across all its applications in the GM stable it makes anywhere from 230 to 237 hp.    What we can see is that the new CUV takes the Envision name in a more dynamic direction, starting with a trim upper front fascia that puts narrow headlights astride a wide grille clearly derived from the concept, the lower front fascia with chrome-lined outer intakes that recall the Aston Martin DBX. A diffuser-looking silver trim piece in front is mirrored in back. A sloping roof helps create the slim profile, leading to a trim backlight, thin taillights, and strong horizontals on the bumper that emphasize width.

2017 Buick LaCrosse an evolution of sharp Avenir concept

After years as a bloated, uninspiring, but comfortable near-premium sedan, Buick has taken the wraps off a leaner, lither, far more stylish LaCrosse. The third-generation model has just made its debut at the 2015 Los Angeles Motor Show. While there's a lot to talk about, let's first address the new, Avenir-inspired sheetmetal. The fascia is basically the concept car smoothed over into production form, featuring the same winged trishield. In place of the chrome-trimmed waterfall, the LaCrosse gets a blacked-out, recessed grille with a chrome surround. It looks good in photos but it's better in person, adding a real sense of complexity and depth to the front end. The headlights and lower fascia, meanwhile, adhere closely to the concept. The same cannot be said of the LaCrosse's tail. While the taillight lighting pattern is similar, the overall shape of the lighting element is radically different, refining the design featured on the back of the Regal. Also gone, sadly, is the Avenir's boattail rear deck. Instead, the LaCrosse gets a small rear deck that curves up into a pleasant duckbill spoiler. The rest of the tail is pleasantly restrained. Perhaps the weakest point is the profile, where Buick has instituted a "split-spear" design, featuring a strong shoulder line above the rear wheel well, which sits below an even stronger character line that curves down and towards the front of the car. It strikes us as just a little too much, like the Impala. Underneath that sheetmetal, Buick has managed to trim nearly 300 pounds of body fat, nearly half of which came from the vehicle's actual structure. That 300 lbs, according to Buick's engineers, is equivalent to a Kenmore side-by-side refrigerator, in case you needed a helpful comparison. Despite the weight savings, Buick has upped the torsional rigidity for this new model by 15 percent. The LaCrosse's cabin features a strong, cockpit-like design, with a high, floating-bridge center console. This is possible due to Buick's adaption of the Electronic Precision Shift system, introduced earlier this month on the new Cadillac XT5. Despite the new-fangled console design, Buick's retained the wraparound cabin style introduced on the second-gen model. Based on a quick crawl around the interior, space is great in front, although ingress in back is somewhat difficult due to the roofline. You're probably wondering why we haven't said anything about the mechanicals just yet.