2021 GMC Sierra 2WD

5.3L 8-cyl · 6-speed automatic · RWD

GasolineRegularStandard Pickup Trucks 2WD

Official EPA record #43817 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed

Per month

$242.86

Per year

$2,914

Per mile

24.3¢/mi

5-year total

$14,570

pickup body style — not this exact model

Notes & official EPA estimate

728.6 gal of fuel / yeargasoline @ $4.00/galAt $5.00/gal: $303.57/mo

A mile road trip costs about $72.90 in energy.

Official FuelEconomy.gov estimate: $3,900/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.

Compare with another vehiclePrices: EPA national averages, Jul 24, 2026 — override anytime.

At 12,000 miles per year (55% city / 45% highway) with EPA national-average prices ($4.00/gal regular), this 2021 GMC Sierra 2WD costs about $242.86 per month in fuel — $2,914 per year, 24.3¢/mi, $14,570 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #43817. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.

GMC Sierra: running costs for every model year →

Official EPA efficiency

Measure	Value
City MPG	14
Highway MPG	21
Combined MPG	16

Official EPA estimates

Estimate	Value
Official annual fuel cost (15,000 mi/yr)	$3,900/yr
Tailpipe CO₂	541 g/mi
EPA greenhouse gas score	2/10
EPA smog rating (Federal Tier 3 Bin 70)	5/10

Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #43817 (record updated 2021-08-24). Snapshot processed 2026-07-26; page data last changed 2021-08-24.

View this record on FuelEconomy.gov

Related configurations

Same year, same family

Adjacent model years