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  • GM: Chevrolet Silverado and GMC Sierra with 2.7L Turbo Should Get Better MPG than Label

GM: Chevrolet Silverado and GMC Sierra with 2.7L Turbo Should Get Better MPG than Label

Small-Displacement Turbo Four Gets Marginally Better EPA Ratings than 4.3L V-6

Nov 19, 2018
The 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 shocked the world when the companies behind the trucks announced that certain trims would come standard with a turbocharged I-4 in place of the outgoing 4.3L EcoTec3 V-6. But when it came time to test the trucks with the Environmental Protection Agency, the much-publicized 2.7L turbocharged I-4 in the GM trucks achieved only slightly better fuel economy than the old six-pot.
Photo 2/6   |   2019 Chevrolet Silverado 27l Turbo
Its 20-mpg city rating is a fair improvement over the V-6, but the engine is let down by a 23-mpg highway rating and a 21-mpg combined rating, marginal improvements over the 4.3L V-6 and well down from V-6 competitors from Ford and Ram.
Well, GM says not to completely trust the EPA fuel economy numbers on the window sticker, as reported by Automotive News.
Photo 3/6   |   2019 Chevrolet Silverado RST 023
Tim Herrick, executive chief engineer for GM’s fullsize truck lineup, told a gathering of the automotive media in Arizona that the Silverado 1500 would be more fuel-efficient than its EPA ratings would suggest. That corroborates with what we heard when we drove the 2.7T prototype in May—back then, GM said the powertrain would be diesel-like in its real-world fuel economy, achieving better numbers on the road than in the lab.
Photo 4/6   |   2019 Chevrolet Silverado Rst Front Quarter 02
Photo 5/6   |   2019 Chevrolet Silverado RST 024
“Don’t look at the label,” says Herrick. “We’re as good or better than [our competitors’ V-6 engines] in every step.”
Furthermore, as we said in our reporting of the truck's fuel economy—linked above—the turbocharged I-4 has very impressive power and torque ratings for a base engine (it's the standard option in the Silverado 1500 LT and RST and the Sierra 1500 SLE).
Source: Automotive News
Photo 6/6   |   2019 Chevrolet Silverado RST Front View

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