Chevy Duramax Low Miles !!!!! on 2040-cars

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GM applies for LT5, LTX trademarks... are new small block variants coming?

Recently discovered General Motors trademark applications for LT4, LT5, LT88 and LTX have observers wondering what kind of high-performance offerings could be on their way. A new LT4 would mark a return of the engine designation first used on the Corvette Grand Sport, SLP Pontiac Firehawk and SLP Chevrolet Camaro SS from 1996 and 1997. Supposition at Corvette Forum - which provided advance intel on the C7 like these leaked images - believes a new LT4 could go into the high-performance trim of the next-gen, 2015 Camaro that would be more powerful than the 580-horsepower Camaro ZL1.
Seeing an LT5 again would also be déjà vu - in its former life it was a 5.7-liter V8 for the C4 Corvette ZR-1 from 1990-1994 designed by Lotus, producing from 370 hp to 405 hp. A mix of rumor and hope is that the new LT5 will be a supercharged evolution of the 6.2-liter LT1 (pictured) placed in the new C7 Corvette, and that it will go into the C7 version of the ZR1 pumping out something like 700 hp.
The LTX trademark is, as with that last letter, a complete mystery. If the "X" isn't a generic way to denote the whole LT family, it's wondered if it LTX could refer to a crate motor offering like the LSX.

GM resumes production of its 3.0-liter turbodiesel straight-six

General Motors temporarily stopped taking orders for trucks and SUVs equipped with the 3.0-liter Duramax turbodiesel six-cylinder engine in August 2021 due to a supplier shortage. Reports claimed the pause would last through 2021, but the engine is already back in production. Enthusiast website GM Authority learned from sources inside General Motors that the straight-six is once again coming off the assembly line at the Flint Engine Plant in Flint, Michigan. There's no official word on precisely what the problem was linked to and whether it was related to the on-going chip shortage that's wreaking havoc across the automotive industry. All we know is that the pause lasted for about two weeks. Called LM2 internally, the six is available in Chevrolet's Tahoe, Suburban, and Silverado 1500 and in GMC's version of these trucks. It's also an option in the Cadillac Escalade. It develops 277 horsepower at 3,750 rpm and a V8-like 460 pound-feet of torque at 1,500 rpm in every application, and it allows these big behemoths to post surprising fuel economy numbers. Fitted to a rear-wheel-drive Tahoe, the Duramax returns 21 mpg in the city, 28 mpg on the highway, and 24 mpg in a combined cycle, figures that make it more efficient than a Blazer. Demand for the diesel-powered trucks is relatively high. While the shortage undoubtedly took a toll on sales, the Duramax represented 8% of Suburban sales and 6% of Tahoe sales in May 2021. There are no other diesel-burning full-size SUVs available new so they have the market to themselves. On the truck side, Ram still makes the EcoDiesel available on some 1500 trims but Ford abandoned the segment. Related Video: Featured Gallery 2021 Chevrolet Tahoe RST View 24 Photos Chevrolet GMC Truck SUV Diesel Vehicles

GM announces $7 billion Michigan factory investment, most going to EVs

GM announced a $7 billion investment in Michigan manufacturing, much of which is earmarked for EV production. Four sites are included, but the key elements are a new battery cell plant in Lansing and the conversion of GM's existing Orion Township facility to expand production of the forthcoming Chevrolet Silverado EV and its GMC Sierra sibling.  GM says it is the largest investment announcement in company history and that it will create 4,000 new jobs. It also says 1,000 jobs will be retained. "We are building on the positive consumer response and reservations for our recent EV launches and debuts, including the GMC Hummer EV, Cadillac Lyriq, Chevrolet Equinox EV and Chevrolet Silverado EV," said GM CEO Mary Barra.  GM says the Orion expansion and new battery plant will support an increase in full-size electric truck production capacity to 600,000 units. This is in addition to the Factory ZERO facility in Detroit that will also be constructing the electric Silverado and Sierra.  The Orion Township factory current builds the Chevrolet Bolt EV and EUV, and will continue to do so during the plant's conversion. GM did not indicate what will happen with the Bolts once that conversion is complete or whether all will continue to be built at Orion. They do not use the Ultium vehicle architecture. GM will build other EV models at three other factories that are under construction or being converted. They are located in Spring Hill, Tennessee, Ingersoll, Ontario, and Ramos Arizpe, Mexico. GM says that it will have the ability to produce 1 million electric vehicles by 2025. The Ultium Cells Lansing facility is a $2.6 billion joint investment by GM and LG Energy Solution. GM says it alone will create 1,700 jobs once fully operational by late 2024. It will join two other GM Ultium Cells battery factories currently under construction in the United States, one in Ohio and the other in Tennessee.  Not all of the $7 billion investment will be for EVs. It also announced $510 million of the total will go toward upgrading the Lansing Delta Township Assembly to produce the next-generation Chevrolet Traverse and Buick Enclave. Money will also go to upgrading Lansing Grand River Assembly.