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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.

1970 Chevy Camaro gets 650-hp crate engine for SEMA

The latest edition of the Chevrolet Performance catalog arrives at the 2015 SEMA Show, and to demonstrate the insane creations that are possible with it, the company has a seriously powerful machine in tow. This custom 1970 Camaro RS boasts the new LT4 crate engine that makes a staggering 650 horsepower and 650 pound-feet of torque. The offering gives hot rod builders the ability to put the Corvette Z06's 6.2-liter supercharged V8 into any project where they can make the mill fit. This Hyper Blue Metallic Camaro should offer neck-snapping performance with its massively powerful engine and a T-56 Super Magnum six-speed manual gearbox. Chevy's show car is about more than just packing copious horsepower into a classic shape, though. The builders also overhaul the suspension with coilovers at the front and rear, in addition to a four-link setup at the back. Behind the 19-inch aluminum wheels, the coupe has Z06-based brakes at both ends. For better visibility, it wears LED headlights and taillights. Plus, the interior gets custom gauges and a six-point roll cage. With pieces like titanium intake valves and forged aluminum pistons, the LT4 crate engine comes ready to offer serious performance, but Chevy also gives builders a few options to fit their application. The mill is available with either wet- or dry-sump lubrication. Depending on the version, there are kits to fit front-end accessories, air conditioning, and power steering, as well. The new Chevy Performance catalog features other high-performance components like Z06-based parts for the standard Stingray and an array of performance upgrades for the 2016 Camaro, including suspension lowering kits, brake upgrades, and more. We look forward to seeing this vast collection of goodies at SEMA this year. Related Video: Classic 1970 Camaro Shows Supercharged LT4 Heart Contemporized muscle car highlights new Corvette Z06-based crate engine LAS VEGAS – Chevrolet Performance is showing off the new LT4 crate engine in the most attractive way possible – under the hood of a classic 1970 Camaro RS. The concept vehicle was introduced today at the SEMA Show, in Las Vegas. As the supercharged 6.2L heart of the Corvette Z06, the LT4 is rated at 650 horsepower and 650 lb-ft of torque, making it the most powerful production-vehicle engine ever from General Motors. The new crate engine – offered in dry-sump and wet-sump versions – allows builders to use the high-tech performance engine in their hot rod projects.

Should heavy-duty pickup trucks have window stickers with fuel mileage estimates?

If you were to stroll into your nearest Chevrolet, Ford, GMC, Nissan, or Ram dealership, you'd find a bunch of pickup trucks. Most of those would have proper window stickers labeled with things like base prices, options prices, location of manufacture, and, crucially, fuel economy estimates. But you'd also run across a number of heavy-duty trucks with no such fuel mileage data from the Environmental Protection Agency. The EPA doesn't require automakers to publish the valuable miles-per-gallon measurement for vehicles with gross weight ratings that exceed 8,500 pounds. That makes it difficult for consumers to compare behemoths powered by turbocharged diesel engines – between one another, and between smaller, gasoline-fueled trucks. Consumer Reports doesn't think it should be this way, and it's spearheading an effort (PDF link) to get the government to require manufacturers to publish fuel economy estimates. In its own testing, CR found that heavy-duty pickups powered by Ford's Power Stroke, GM's Duramax, and FCA's Cummins diesel engines (which doesn't include the Ram's EcoDiesel) get worse fuel mileage than their lighter-duty gas-powered siblings. We're not so sure HD-truck buyers are unaware of this fact – big diesels don't really come into their own until big loads are placed in their beds or attached to their trailer hitches. Under heavy workloads, the diesel trucks will almost certainly return greater efficiency than a similar gas-powered truck. What's more, HD trucks with lumbering diesels in general make the driver feel more confident while towing due to greater torque at low engine RPM than gas trucks. They also offer greater max-weight limits. Still, we agree EPA fuel mileage estimates should be offered for heavy-duty pickups. And we think the comparisons provided by Consumer Reports might be interesting to potential buyers. Click here to see the results of CR's tests, and let us know what you think using the poll below. Related Video: Featured Gallery 2017 Ford F-Series Super Duty: First Drive View 22 Photos News Source: Consumer Reports Government/Legal Green Read This Chevrolet Ford GMC Nissan RAM Fuel Efficiency Truck Commercial Vehicles Diesel Vehicles poll gmc sierra hd chevy silverado hd