1998 Chevrolet Chevy C 2500 6.5 Turbo Diesel Maintenance Utility Bed Truck on 2040-cars

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2016 Chevy Volt powertrain technical details

The last time General Motors launched a Chevy Volt, it was operating without really knowing how people would use the plug-in hybrid. Sure, it had experience with the EV1, but the Volt was a new kind of car, and you can see in the archives just how much time GM spent explaining this fresh, new powertrain to potential customers. Then, once the vehicle was released, the company collected voluntary data from a large number of owners to learn about their driving and charging habits. The company also asked them what they wanted most in the new version. There's got to be an algorithm buried somewhere in GM headquarters that was used to take all of the numbers GM collected and spat out the headline figures for the 2016 Volt: 50 miles of EV range and 41 miles per gallon. Another important number – price – is something GM isn't talking about yet (expect it in April or May), but the company is sharing some powertrain details about the upcoming car. At a preview lunch in Detroit last week for the SAE 2015 Hybrid & Electric Vehicles Technologies Symposium that's happening now in California, GM engineers Peter Savagian (who is presenting a paper on the new inverter used in the updated Volt) and Tim Grewe (talking about the entire second-generation powertrain) sat down with AutoblogGreen to tell us about the Volt's all-new propulsion system: The overall gist is that the new Voltec 5ET50 drive unit is lighter, smaller and more powerful thanks to a redesigned two-motor traction drive. As previously reported, the new engine is a 1.5-liter DOHC four-cylinder that offers 101-horsepower (at 5,600 RPM). Grewe said it's "great for range extension." The electric motor side of the powertrain offers 149 motoring horsepower from a two-motor, continuously variable transaxle. Initially, the new engine will be made in Mexico. GM will move production to Flint, MI during the first year it makes the 2016 Volt. The battery is slightly bigger in the new Volt – 18.4 kWh compared to 16.5 in the current-gen – and will have less range variation in the cold. GM is also using more of the overall capacity in the pack in the 2016 Volt than in previous versions, but is not saying how much more. GM is not ready to publish acceleration times just yet, but the 2016 Volt has improved numbers, especially when going from 30-60 miles per hour. Most everything on the new powertrain has become more efficient compared to the first-gen Volt.

Leaked GM document shows GMC Sierra I6 diesel is more powerful than F-150's

GM told us earlier this year that the 2019 GMC Sierra would be getting a 3.0-liter I6 diesel option, but it never mentioned power or fuel economy figures. Hold the phone though, because a leaked GM Canada document just showed up online that lists out the details we've been waiting for. Originally published by TFL Truck, the 3.0-liter oil-burner supposedly makes 282 horsepower and 450 pound-feet of torque. For those who are counting, that's more than the Ford F-150's 250 horsepower and 440 pound-feet from its 3.0-liter diesel. It soundly bests the 240 horsepower and 420 pound-feet of torque from Ram's 3.0-liter diesel as well. Fuel economy is another story, though. The promotional material states that it will get 28 mpg on the highway, which is 2 mpg short of the F-150's 30 mpg — mind you, it's only capable of that magical 30 mpg figure in rear-wheel drive form. There's another caveat here, too; these are numbers for Canada, so they're not exactly finalized EPA figures. However, we wouldn't expect drastic differences between the two when the American numbers come out. The leaked documents also state the diesel Sierra will be capable of towing 7,800 pounds. That number seems remarkably low when compared to the F-150, which can tow up to 11,400 pounds with its diesel. Extra power and torque would have us assume that GM could get even better numbers than Ford, so we're going to hold our final judgment for official word. A 10-speed automatic will do the shifting on the diesel, just like on the 6.2-liter V8. Since the Chevy Silverado is also expected to get this engine, we can assume the figures would be almost, if not identical, to those we see here. We recently drove the 2019 Sierra and Silverado without the diesel engines, so go check those reviews out if you'd like to know more of our thoughts on the redesigned GM trucks. Related video:

Dodge Challenger SRT Hellcat vs. Chevrolet Camaro ZL1 in latest Head 2 Head

"Olympian" is one of the terms we use to signify the greatest height, the seat of the gods. Yet Mt. Olympus is the second-highest peak in the Balkans ranges, overshadowed by the crest at Musala in Bulgaria's Rila mountains. Both great heights, but one is a little higher. That's how we get the Olympian Chevy Camaro ZL1 pitched at the Musalic Dodge Challenger SRT Hellcat in Motor Trend's latest episode of Head 2 Head. The side-by-side spec sheet is filled with farcical numbers. For the ZL1, that's a 6.2-liter V8 with 580 horsepower, 556 pound-feet of torque, a 4,051-pound curb weight, 0-to-60 miles per hour in 3.9 seconds, a quarter-mile time of 12.2 seconds and a base price of just $57,800. Opposing that, the Hellcat wrings out its 6.2-liter V8 for 707 hp, 650 lb-ft of torque, weighs 4,449 pounds, does the quarter in 11.7 seconds and has a base price of just $60,990. Except in the case of the Hellcat, when Motor Trend put it on the dyno the machine spit out a reading of 672 hp and 606 lb-ft at the wheels. If there's a 10-percent driveline loss through those beefed-up internals and heavy-duty eight-speed transmission, that means the Hellcat is actually rated at about 750 horsepower and 700 lb-ft. But once they get put on a closed-off strip of coast road in Northern California, there are only a few strands of hair between their respective performances. That's not the case for they sensations provide; host Jonny Lieberman calls one of them, "One of the most incredible cars ever made," and says, "It changes everything." Watch the video above to see who got the verdict and how. Related Video: