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GMC Sierra 1500 Fuel Economy (g/100m)
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| Model Year | Body/Powertrain | g/100m | |
| 2021 | 2021 4dr Crew Cab 6ft bed turbocharged 277hp 3.0L V6 Diesel 10-sp shiftable automatic 4WD w/low range | 4.08 | See all data |
| With the turbocharged 227kW 3.0L I4 Diesel engine, 10-speed shiftable automatic transmission, and four-wheel drive w/low range, the 2021 GMC Sierra 1500 has been averaging 4.08 L/100km (liters per 100 kilometers). The 2021 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 70 kilometers per hour (about 50 percent of the kilometers driven). The rest of the kilometers were in the city (25 percent), in the suburbs (0 percent), and in heavy traffic (0 percent). In addition, the average 2021 GMC Sierra 1500 in this analysis was driven on flat terrain with a light foot and the AC on only some of the time. |
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