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Which is more fuel efficient, driving with a pickup's tailgate up or down?

Thanks to the smoke wand in the wind tunnel, you can actually see the difference in our video.
Should you drive with your pickup truck's tailgate up or down? It's an age-old controversy that's divided drivers for decades. Traditionalists will swear you should leave the tailgate down. Makes sense, right? It would seem to let the air flow more cleanly over the body and through the bed. But there's also a school of thought that argues trucks are designed to look and operate in a specific manner, and modern design techniques can help channel the airflow properly. So don't mess with all of that: Leave the tailgate up.

Chevy says not to look at the 2019 Silverado's fuel economy rating

The 2019 Chevy Silverado is hitting dealerships soon, and one of the most notable changes for the new full-size pickup is the addition of a 2.7-liter turbocharged inline-four. The engine replaces the naturally-aspirated 4.3-liter V6 in volume consumer models like the Silverado LT and promises more power, less weight and — most importantly — better fuel economy. The thing is, the gains in efficiency haven't been as dramatic as some might have hoped, especially when stacked up against competitors from Ford and Ram. As Automotive News reports, GM's response is a little murky. First, let's talk numbers. We're pulling all figures from FuelEconomy.gov, the official U.S. government source for fuel ratings. Fuel economy numbers on trucks vary greatly based on a number of factors. Bed and cab configuration play a part, but so does a four-wheel-drive system. You also have to factor in tires, transmissions, rear-axle gearing, hybrid systems and cylinder deactivation. Things like that can make the difference between best- and worst-in-class. The EPA's website doesn't give enough information a lot of the time, so there's really no easy way to compare apples-to-apples. First, take a look at the ratings for the 2019 Silverado. A 2.7-liter model with two-wheel drive is rated 20 city, 23 highway and 21 combined. That's both better and worse than a two-wheel drive 2018 Silverado with the 4.3-liter V6 (18 city, 24 highway and 20 combined). The updated 2019 Silverado with a 4.3-liter V6 has yet to be rated. With less weight and a smaller engine, many hoped Chevy would make bigger gains. It's unusual to see any decrease in a fuel economy metric these days. GM says that it's not done tuning the new 2.7-liter engine, so fuel economy could theoretically increase. Expanding further, a V8-powered 2019 Silverado (17 city, 24 highway and 19 combined) actually gets better highway fuel economy than a turbocharged four-cylinder powered truck in certain configurations, even if the latter has a better overall average. But that's only with two-wheel drive, the 8-speed transmission and cylinder deactivation. A Silverado with the 5.3-liter V8 and a 6-speed automatic is rated at 15 city, 22 highway and 17 combined. The biggest issue with the Silverado 2.7-liter doesn't come from within GM itself but from Ford and Ram. GM cites the Ford F-150 with the 3.3-liter V6 and the Ram 1500 with the 3.6-liter V6 as the closest competitors to its new 2.7-liter inline-four.

Ford delays North American production restart from coronavirus lockdown

Ford said on Tuesday it was postponing its plan to restart production at its North American plants due to safety concerns for its workers amid the coronavirus pandemic. To generate cash, the No. 2 U.S. automaker had said last week it was poised to restart production at some plants in North America as early as April 6, bringing back such profitable vehicles as its top-selling F-150 full-sized pickup, the Transit commercial van and SUVs. But on Tuesday, Ford said it had been aiming to resume production at several key U.S. plants on April 14, but would now instead do so at dates it would announce later on. "The health and safety of our workforce, dealers, customers, partners and communities remains our highest priority," Kumar Galhotra, president of Ford's North American operations, said in a statement. Still, the automaker will open a plant in Ypsilanti, Michigan, during the week of April 20, that will make ventilators to treat patients afflicted by the coronavirus. Rival Fiat Chrysler Automobiles said last week it plans to resume production in North America on April 13. General Motors has shuttered its plants indefinitely and has not provided a date for vehicle production to restart. It is facing a delay in the production launch of its redesigned large SUVs and is delaying work on other SUVs. "Once it is safe to resume production, we will do so," a GM spokesman said. As of Monday, Volkswagen was shooting for an April 5 reopening at its Tennessee plant. Honda, Nissan and Subaru facilities in North America will remain closed through April 6, and Hyundai through April 10. Toyota was planning to reopen its North American plants April 17. Plants/Manufacturing Chrysler Fiat Ford GM coronavirus