FuelFacts

← all 2019 GMC Sierra C10 2WD trims

2019 GMC Sierra C10 2WD — 4.3L 6-cyl, Automatic 6-spd, RWD

This 2019 GMC Sierra C10 2WD (4.3L 6-cyl, Automatic 6-spd, RWD) takes regular (87-octane) gasoline. REGULAR

17
MPG combined (16 city / 21 hwy)
$3,353
est. fuel cost / year (today’s prices, 15k mi)
509 g/mi
tailpipe CO₂

At today's AAA national average price ($3.80/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.

Other 2019 GMC Sierra C10 2WD trims

TrimFuelMPGFuel/yr
2.7L 4-cyl, Automatic 8-spd, RWDREGULAR21$2,714
2.7L 4-cyl, Automatic 8-spd, RWDREGULAR20$2,850
5.3L 8-cyl, Automatic 8-spd, RWDREGULAR19$3,000
5.3L 8-cyl, Automatic 6-spd, RWDREGULAR17$3,353
5.3L 8-cyl, Automatic 6-spd, RWDFLEX-FUEL17$3,650

EPA fuel type: Regular · class: Standard Pickup Trucks 2WD · engine: 4.3L 6-cyl · transmission: Automatic 6-spd · drive: RWD · MPG retrieved 2026-07-24.