2002 Buick Century Limited Sedan 4-door 3.1l 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.

U.S. denies GM tariff relief request for China-made Buick SUV

WASHINGTON — The Trump administration has denied a General Motors Co request for an exemption to a 25 percent U.S. tariff on its Chinese-made Buick Envision sport utility vehicle. The denial of the nearly year-old petition came in a May 29 letter from the U.S. Trade Representative's office saying the request concerns "a product strategically important or related to 'Made in China 2025' or other Chinese industrial programs." The midsize SUV, priced starting at about $35,000, has become a target for critics of Chinese-made goods, including leaders of the United Auto Workers union and members in key political swing states such as Michigan and Ohio. GM said on Tuesday it was aware of the denial and has been paying the tariff since July. GM has not raised the sticker price to account for the tariff. Buick Envision sales fell in the United States by nearly 27% to 30,000 last year and fell another 21% in the first three months of 2019. Only a small number of vehicles are built in China and sold in the United States. Last month, the U.S. Trade Representative's Office also denied a request by Chinese-owned Volvo Cars for tariff exemptions for mid-size SUVs assembled in China after the automaker sought an exemption for the XC60, its top selling U.S. vehicle. GM, the largest U.S. automaker, argued in its request that Envision sales in China and the United States would generate funds "to invest in our U.S. manufacturing facilities and to develop the next generation of automotive technology in the United States." GM said last year the "vast majority" of Envisions, about 200,000 a year, are sold in China. Because of the lower U.S. sales volume, "assembly in our home market is not an option" for the Envision, which competes with such mid-size crossover vehicles as the Jeep Grand Cherokee and the Cadillac XT5. Ahead of the July 2018 start for higher import tariffs, GM shipped in a six-month supply of Envisions at the much lower 2.5 percent tariff rate, Reuters reported in August 2018.

Buick Encore takes a hit of Mokka to tackle Dakar

There are many vehicles we'd consider taking racing. Even on a cross-country rally as punishing as the Dakar. But a Buick Encore? That's not one that would enter our motorsports-based consciousness. Yet it's basically what General Motors is entering in the South American rally raid this year, and you're looking at it.
Unveiled at the Moscow Motor Show, this rally machine is based on (or at least billed as) an Opel Mokka - the name that GM's European brand applies to the vehicle Americans know as the Encore, Buick's subcompact crossover. Only it's obviously been extensively modified. It's got a ten-inch raised suspension, a 137-gallon fuel tank, carbon-fiber bodywork and... hold on, we're sure we're missing something here. Oh, right: a 6.2-liter V8 kicking out 340 horsepower and 487 pound-feet of torque to all four wheels through a six-speed sequential gearbox.
In other words, this is not the same Encore (or Mokka) you can pick up at your local Buick, Opel or Vauxhall dealership. It's not even close. It's not even recognizable as such, really. It was unveiled alongside a more sedate Opel Mokka Moscow Edition and a slew of other local debuts for the Opel brand that you can read more about in the (translated and original) Russian press release below.