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2021 Nissan Frontier 4WD — 3.8L 6-cyl, S9 automatic, 4WD
This 2021 Nissan Frontier 4WD (3.8L 6-cyl, S9 automatic, 4WD) takes regular (87-octane) gasoline. REGULAR
19
MPG combined (17 city / 23 hwy)
$3,000
est. fuel cost / year (today’s prices, 15k mi)
469 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.
EPA fuel type: Regular · class: Standard Pickup Trucks 4WD · engine: 3.8L 6-cyl · transmission: S9 automatic · drive: 4WD · MPG retrieved 2026-07-24.