Does the 2021 GMC Yukon 4WD take premium or regular gas?

The EPA lists the 2021 GMC Yukon 4WD 5.3L 8-cyl, Automatic 10-spd, 4WD as taking regular. Combined MPG is 18, and at today's gas prices that's about $3,167 a year in fuel.

← all 2021 GMC Yukon 4WD trims

2021 GMC Yukon 4WD — 5.3L 8-cyl, Automatic 10-spd, 4WD

This 2021 GMC Yukon 4WD (5.3L 8-cyl, Automatic 10-spd, 4WD) takes regular (87-octane) gasoline. REGULAR

MPG combined (16 city / 20 hwy)

$3,167

est. fuel cost / year (today’s prices, 15k mi)

496 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 GMC Yukon 4WD trims

Trim	Fuel	MPG	Fuel/yr
5.3L 8-cyl, Automatic 10-spd, 4WD	REGULAR	17	$3,353
3.0L 6-cyl, Automatic 10-spd, 4WD	DIESEL	22	$3,259
6.2L 8-cyl, Automatic 10-spd, 4WD	PREMIUM	16	$4,388
6.2L 8-cyl, Automatic 10-spd, 4WD	PREMIUM	16	$4,388

EPA fuel type: Regular · class: Standard Sport Utility Vehicle 4WD · engine: 5.3L 8-cyl · transmission: Automatic 10-spd · drive: 4WD · MPG retrieved 2026-07-24.