Which gmc truck has best gas mileage?

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Gerda Lueilwitz asked a question: Which gmc truck has best gas mileage?
Asked By: Gerda Lueilwitz
Date created: Wed, Apr 7, 2021 10:08 AM
Date updated: Thu, Jun 23, 2022 4:01 AM

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2021 GMC Sierra 1500 2WD Diesel | 26 MPG

The smooth, torquey Duramax diesel engine is only available on Sierra double cab (extended-cab) and four-door crew cab models, and it delivers its best fuel economy with two-wheel drive.

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