2024 Gmc Duramax 2024 Diesel Mpg 2020. Edmunds also has gmc sierra 1500 diesel pricing, mpg, specs, pictures, safety features, consumer reviews. 2020 gmc *chevrolet* 3500 * silverado* *gmc* *sierra*, slt *hd*, 4×4, **** 1 owner ****, clean title and carfax certified, local trade, super clean, long bed, 6.6l.
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470 hp @ 2,800 rpm; It’s one hell of a powerhouse, making 305 horsepower but 495.
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