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2018 Ford Expedition vs other big SUVs: How it compares on paper

With our Alex Kierstein rightly impressed in his first-drive review of the new 2018 Ford Expedition, we decided to dig a little deeper into the numbers, and we came up with the spreadsheet below to highlight how the new 2018 Expedition compares on paper to its main full-size SUV competitors: the 2018 Chevy Tahoe and Suburban (and therefore the 2018 GMC Yukon), 2018 Toyota Sequoia and 2018 Nissan Armada. We also threw in the new, even bigger 2018 Chevrolet Traverse since, as you'll see, its massive dimensions should put it on the radar for anyone who needs loads of passenger and cargo space but doesn't care as much about towing. A few notes about the chart above. First, the 6.2-liter V8 that's included with the new-for-2018 Tahoe RST trim level is the standard engine on the GMC Yukon Denali. You can apply most of the Tahoe's numbers to the entire Yukon and Yukon XL lineup. Second, though we highlighted categories where the Traverse led, we also highlighted the runner-up full-size SUV, since this was ultimately about that segment. Traverse numbers are broadly applicable to the new Buick Enclave. Related Video: Chevrolet Ford GMC Nissan Toyota SUV Comparison consumer ford expedition gmc yukon chevy traverse toyota sequoia nissan armada chevrolet tahoe ford expedition max

'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 is training more first responders for EV emergencies in the U.S. and Canada

GM is training more first responders to be able to handle emergencies involving electric vehicles. The automaker is "significantly expanding" its EV First Responder Training program in the United States and Canada as electric vehicle sales continue to grow. Its initiative will primarily focus on training firefighters and equipping them with the necessary knowledge about full electric vehicle technologies. GM says it's hoping to dispel misconceptions when it comes to handling EVs in emergency situations. One of those misconceptions is that water is dangerous around EV batteries — turns out the recommended way to put out lithium-ion battery fires is by using copious amounts of water.  Andrew Klock, a senior manager of education and development at the National Fire Protection Association (NFPA), said: "The best way for the public and private vehicle fleet owners to rapidly adopt EVs is to train firefighters and emergency responders on how to handle incidents involving battery powered vehicles. The fire service has had more than 100 years to gain the knowledge needed to respond to internal combustion engine fires, and it is critical that they are now educated on EV safety." The NFPA held trainings of its own that had benefited 300,000 first responders, but it believes more than 800,000 members of the community still need further training.   GM previously piloted the program in southeast Michigan, but now it's conducting training events across Michigan and in Fort Worth, Texas, as well. Later this summer, it's bringing the program to metro New York City and Southern California. Participants will have to attend four-hour sessions, with up to two per day, held in various venues, such as fire houses and dealerships. Interested first and second responders can register through the program's dedicated website and earn a certificate from the Illinois Fire Service Institute if they score higher than 70 percent on the learning assessment by the end of their training.  The automaker already has a few EV models on the market, including the Chevy Bolts, the GMC Hummer EV and the Cadillac Lyriq. It has huge electrification plans for the future, though, and training responders could help make potential customers more receptive to the idea of switching to electric vehicles. GM aims to launch 30 EV models by 2025 and to exclusively sell EVs ten years after that. Related video: Green Cadillac Chevrolet GM GMC Safety Electric