← all 2021 Ford Bronco 4WD trims
2021 Ford Bronco 4WD — 2.3L 4-cyl, S10 automatic, 4WD
This 2021 Ford Bronco 4WD (2.3L 4-cyl, S10 automatic, 4WD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (20 city / 22 hwy)
$2,714
est. fuel cost / year (today’s prices, 15k mi)
424 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 2021 Ford Bronco 4WD trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.3L 4-cyl, 7-spd manual, 4WD | REGULAR | 21 | $2,714 |
| 2.7L 6-cyl, S10 automatic, 4WD | REGULAR | 19 | $3,000 |
EPA fuel type: Regular · class: Small Sport Utility Vehicle 4WD · engine: 2.3L 4-cyl turbo · transmission: S10 automatic · drive: 4WD · MPG retrieved 2026-08-01.