2010 Gmc Yukon Denali Awd Loaded Navi Roof Cam We Finance! Free Shipping!! on 2040-cars

Auto blog

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).

GM seeks national mandate for zero-emissions cars

DETROIT — General Motors says it will ask the federal government for one national gas mileage standard, including a requirement that a percentage of auto companies' sales be zero-emissions vehicles. Mark Reuss, GM's executive vice president of product development, said the company will propose that a certain percentage of nationwide sales be made up of vehicles that run on electricity or hydrogen fuel cells. GM says a nationwide program modeled on such a requirement in California could result in 7 million electric vehicles, or EVs, on U.S. roads by 2030. California wants 15.4 percent of vehicle sales by 2025 to be EVs or other zero emission vehicles. Nine other states, including Maryland, Massachusetts, New Jersey and New York, have adopted those requirements. In January, California Governor Jerry Brown set a target of 5 million zero-emission vehicles in California by 2030. The Trump administration criticizes California's ZEV mandate, saying it requires automakers to spend tens of billions of dollars developing vehicles that most consumers do not want, only to sell them at a loss. Reuss told reporters that governments and industries in Asia and Europe "are working together to enact policies now to hasten the shift to an all-electric future. It's very simple: America has the opportunity to lead in the technologies of the future." A national mandate also would create jobs and reduce fuel consumption, CO2 emissions and "make EVs more affordable," Reuss added. GM, the nation's largest automaker, will spell out the request Friday in written comments on a Trump administration proposal to roll back Obama-era fuel economy and emissions standards, freezing them at 2020 levels instead of gradually making them tougher. Under a regulation finalized by the Environmental Protection Agency at the end of the Obama administration, the fleet of new automobiles would have to get 36 miles per gallon by 2025, 10 mpg higher than the current requirement. But the Trump administration's preferred plan is to freeze the standards starting in 2021. Administration officials say waiving the tougher fuel efficiency requirements would make vehicles more affordable, which would get safer cars into consumer hands more quickly. GM on Thursday said it doesn't support the freeze, but wants flexibility to deal with consumers' shift from cars to less-efficient SUVs and trucks.

Best pickup trucks for 2023

In 2023, it seems like there’s a pickup truck for everyone. This wasnÂ’t always the case, as it wasnÂ’t until fairly recently that the midsize truck segment started becoming competitive again, and even more recently that weÂ’ve got choices for economical compact trucks or cleaner electric pickups. As the diversity of choices continues to grow, so does the potential customer base for vehicles with an open bed. Whether youÂ’re looking for something luxurious to drive in style, an absolute workhorse to tow the heaviest of loads, something small and practical, or a dune-blasting monster, youÂ’ve got options. Whatever it is you need it to do, here are what we think are the best pickup trucks for 2023. Before we start really categorizing these trucks, let's go over the scores our editors have given the best-selling pickup trucks in America. Best Full-Size Pickup Trucks for 2023: 2023 Ram 1500: 9.0 2023 Ford F-150: 8.5 2023 GMC Sierra: 8.0 2023 Chevrolet Silverado: 7.5 2023 Toyota Tundra: 7.0 2023 Nissan Titan: 5.5 Best Midsize Pickup Trucks for 2023: 2023 Ford Ranger: 8.0 2023 Honda Ridgeline: 8.0 2023 Jeep Gladiator: 8.0 2023 Nissan Frontier: 7.5 2023 Toyota Tacoma: 7.0 It's worth noting that the Chevrolet Colorado and GMC Canyon were redesigned for 2023, and we like them quite a bit. We haven't yet been able to pass them around to all of our editors in order to give them official rankings, but we're certain they'll come out at or near the top. Now, remember what we said at the outset about there being a pickup truck for every buyer? Let's break it down.   Best luxury truck: Ram 1500 Limited With an exceptionally comfortable interior with high-quality materials, excellent fit and finish, plenty of space, useful technology and a wealth of convenience features, this is the cabin in which weÂ’d want to spend the most time. We especially like touches like the ventilated reclining back seat, clever storage and 12-inch vertically oriented touchscreen. All the American trucks can be ultra-luxurious, though. What really seals the deal for Ram is its choice of either coil spring or air spring rear suspension that provide unmatched ride quality, no matter which you choose. The 1500 Limited will truly keep you feeling kingly on those long hauls. Read our review of the Ram 1500.   Best truck for cowboys: Ford F-150 King Ranch (Honorable mention: Ram 1500 Limited Longhorn) Need a truck to match those new cowboy boots and shiny belt buckle?