FuelFacts

← all 2023 GMC Sierra 2WD trims

2023 GMC Sierra 2WD — 5.3L 8-cyl, Automatic 10-spd, RWD

This 2023 GMC Sierra 2WD (5.3L 8-cyl, Automatic 10-spd, RWD) is flex-fuel (gasoline or E85). FLEX-FUEL

18
MPG combined (16 city / 20 hwy)
$3,450
est. fuel cost / year (EPA, 15k mi)
496 g/mi
tailpipe CO₂

Other 2023 GMC Sierra 2WD trims

TrimFuelMPGFuel/yr
2.7L 4-cyl, Automatic 8-spd, RWDREGULAR20$3,100
2.7L 4-cyl, Automatic 8-spd, RWDREGULAR20$3,100
5.3L 8-cyl, Automatic 10-spd, RWDREGULAR18$3,450
5.3L 8-cyl, Automatic 10-spd, RWDREGULAR18$3,450
5.3L 8-cyl, Automatic 10-spd, RWDREGULAR18$3,450
3.0L 6-cyl, Automatic 10-spd, RWDDIESEL26$3,000

EPA fuel type: Gasoline or E85 · class: Standard Pickup Trucks 2WD · retrieved 2026-06-14.