The 2021 GMC Sierra Black Turbo (2.7L/4 cylinder) – With Load Which is why we use numbers in the first place. I was expecting it to be higher, because it definitely felt like the truck was working harder, but the numbers didn’t agree.
I also have a passenger, because you’re not loading and spreading 60 bags of dirt solo. Next up, the same bright red truck with 60 bags of topsoil in the back simulating a hefty payload. The 2021 GMC Sierra Elevation (5.3L/V8) – With Load
Especially between vehicles that are the same make and model.Ĭonsumption was slightly higher on the highway at speeds of 110 km/h, but came down on the back road segments, exactly as expected. Is this the most definitive way to capture fuel economy? No, but it works quite well and is consistent.
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The 2021 GMC Sierra Elevation (5.3L/V8) – No Loadįirst up was the bright red Elevation model with a bed full of sailboat fuel and a nice cool day so I wouldn’t have to use the AC.Īfter a bit more than an hour and 70.8 kilometres, I’ve averaged 10.4 L/100 km according to the onboard computer. The V8-powered Elevation’s estimate is 15.2 and 11.1, Yes, that’s slightly better on the highway than the four, which had us curious as well. GMC estimates that the 2.7-litre Sierra Black Turbo we tested should return 13.3 L/100 km city and 11.8 highway. And based on less controlled drives in town, empty and full, we believe that the end result would be the same, even if the figures would be a bit higher. Yes, it’s a bit easier on fuel than driving through the stop-and-go city, but it’s more consistent as well as more realistic for Atlantic Canadians. It was a hilly route, and the return leg was quite twisty and hilly meaning lots of braking and then acceleration. Once empty, and once with around 1300 pounds (589 kg) of bagged topsoil in the box. We planned to test each truck on the same 71-kilometre highway and rural route loop.
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Plus GMC thinks it’s only worth a $50 invoice credit, so it may not make a massive difference.Ģ021 GMC Sierra Elevation – 5.3-litre V8 engine Thanks to the ongoing semiconductor shortage, that feature is missing from a massive number of 2021 trucks. This Sierra Elevation, the red one with the V8, is also lacking dynamic fuel management. The 10-speed can be had on only the top-trim trucks (with the V8s or diesel), and while the lack of extra gears do hold these trucks back economy-wise, they’re both on equal footing. This thing sounds full big-rig on the move, with a turbo soundtrack that’ll leave the kid down the block with their turbo-kitted Civic feeling absolutely crushed.Ģ021 GMC Sierra Black Turbo – 2.7-litre four-cylinder turbocharged engineīoth of these trucks are equipped with GM’s eight-speed automatic. It’s hard to beat the rumble of a small block V8, but instead of an increasing burble, the 2.7-litre makes all sorts of delightful whooshing noises. The V8’s 355 hp is higher, too, but on the road the V8 feels the need for RPM to get the job done while the turbo-four offers a diesel-like pull even from low revs. The smaller engine’s torque shows up way down at 1,500 revs and lasts longer. It’s nearly as much torque as the 5.3-litre V8’s 383. We take a look at two versions of the GMC Sierra, one sporting that new 2.7-litre turbo-four and the other, the 5.3-litre V8, load up with cargo and find out if the little engine really can.ģ10 horsepower and 348 lb-ft of torque from a 2.7-litre engine is impressive. In the real world, where you need to move payloads and your acceleration isn’t monitored by officials taking a test, does it still add up?
A four-cylinder engine for your pickup that delivers power and torque that would have crushed the V8 just a few years ago, while offering better fuel economy than the latest eight-cylinder, looks great on paper.
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