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2025 GMC Yukon AT4 Facelift (T1UG)
Shown: 2025 GMC Yukon AT4 Facelift (T1UG). Photo: Wlb5V, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2027
  • Gas
  • Diesel
  • Standard SUVs
  • Partial model year

2021-2027 GMC Yukon MPG & Fuel Cost

7 model years · 16–23 MPG combined

17 MPG
Combined
15 MPG
City
20 MPG
Highway
Annual fuel cost · Yukon 5.3L 8-cyl RWD
$3,900

15,000 mi/yr · regular gasoline $4.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 3 of 10 standard SUV configurations, MY2027. Ranked against all rated configurations, not sales-weighted.

Previous generation: 2015-2020

2021-2027 GMC Yukon at a glance

The 2021-2027 GMC Yukon covers 7 model years in the EPA database (100 configurations in all), rated 16–23 MPG combined. The newest model year, 2027, costs about $4,100 a year to fuel for its most efficient version, the XL 3.0L 6-cyl turbo RWD (23 MPG), at diesel $6.29/gal (U.S. average, Sep 2026). Powertrains over the years: gas and diesel. EPA changed the ratings in 2022, 2023, 2024, 2025, 2026 and 2027.

Model year 2027 is still being filled in by EPA (12 configurations listed so far), so rows may be added.

2021-2027 GMC Yukon by model year

2021-2027 GMC Yukon: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2027 (partial) Gas, Diesel 16–23 MPG $3,900–$4,930 Ratings changed
2026 Gas, Diesel 16–23 MPG $3,900–$4,930 Ratings changed
2025 Gas, Diesel 16–23 MPG $3,900–$4,930 Ratings changed
2024 Gas, Diesel 16–23 MPG $3,880–$5,110 Ratings changed
2023 Gas, Diesel 16–23 MPG $3,880–$5,110 Ratings changed
2022 Gas, Diesel 16–23 MPG $3,880–$5,140 Ratings changed
2021 Gas, Diesel 16–23 MPG $3,630–$5,180 First year

What the 2027 Yukon 5.3L 8-cyl RWD costs to drive

Per month

$325

$3,900 a year ÷ 12

Per 25 miles

$6.50

Per 100 miles

$26.00

Five years

$19,500

5 × the yearly cost, prices held at today's level

vs the standard SUV median

$740more a year

Class median $3,160 a year, MY2027

Based on 15,000 miles a year and regular gasoline $4.36/gal (U.S. average, Sep 2026).

2027 GMC Yukon MPG

Model year 2027 is still being filled in by EPA (12 configurations listed so far), so rows may be added.

Versus 2026: The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,900–$4,930
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,280
See diesel configurations

Gas configurations (8)

2027 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,900
XL 5.3L 8-cyl RWD 5.3L 8-cyl RWD 15 20 17 $3,900
Yukon 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 19 17 $3,940
Yukon 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 20 17 $4,750
XL 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 14 19 16 $4,200
XL 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 19 16 $4,920
Yukon 6.2L 8-cyl 4WD 6.2L 8-cyl 4WD 14 18 16 $4,930
XL 6.2L 8-cyl 4WD 6.2L 8-cyl 4WD 14 18 16 $4,930

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2027 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XL 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 26 23 $4,100
Yukon 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 26 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 24 22 $4,280
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 24 22 $4,280

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2026 GMC Yukon MPG

16–23 MPG · $3,900–$4,930/yr

Versus 2025: The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,900–$4,930
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,270
See diesel configurations

Gas configurations (8)

2026 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,900
XL 5.3L 8-cyl RWD 5.3L 8-cyl RWD 15 20 17 $3,900
Yukon 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 19 17 $3,940
Yukon 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 20 17 $4,720
XL 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 14 19 16 $4,210
XL 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 19 16 $4,910
Show 0 more configurations
2026 GMC Yukon gas configurations: EPA ratings and annual cost (+2)
TrimEngineDriveCityHwyComb.$/yr
Yukon 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$4,930
XL 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$4,930

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2026 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XL 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 26 23 $4,100
Yukon 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 26 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 24 22 $4,270
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 24 22 $4,270

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2025 GMC Yukon MPG

16–23 MPG · $3,900–$4,930/yr

Versus 2024: The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,900–$4,930
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,220
See diesel configurations

Gas configurations (8)

2025 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,900
XL 5.3L 8-cyl RWD 5.3L 8-cyl RWD 15 20 17 $3,900
Yukon 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 19 17 $3,940
Yukon 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 20 17 $4,720
XL 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 14 19 16 $4,210
XL 6.2L 8-cyl RWD 6.2L 8-cyl RWD 15 19 16 $4,910
Show 0 more configurations
2025 GMC Yukon gas configurations: EPA ratings and annual cost (+2)
TrimEngineDriveCityHwyComb.$/yr
Yukon 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$4,930
XL 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$4,930

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2025 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
XL 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 26 23 $4,100
Yukon 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 26 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,220
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,220

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2024 GMC Yukon MPG

16–23 MPG · $3,880–$5,110/yr

Versus 2023: The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,880–$5,110
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,290
See diesel configurations

Gas configurations (8)

2024 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,880
XL 5.3L 8-cyl RWD 5.3L 8-cyl RWD 15 20 17 $3,880
Yukon 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 20 17 $3,880
XL 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 18 16 $4,120
Yukon 6.2L 8-cyl RWD 6.2L 8-cyl RWD 14 20 16 $5,020
XL 6.2L 8-cyl RWD 6.2L 8-cyl RWD 14 19 16 $5,020
Show 0 more configurations
2024 GMC Yukon gas configurations: EPA ratings and annual cost (+2)
TrimEngineDriveCityHwyComb.$/yr
Yukon 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$5,110
XL 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$5,110

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2024 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2023 GMC Yukon MPG

16–23 MPG · $3,880–$5,110/yr

Versus 2022: The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,880–$5,110
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,290
See diesel configurations

Gas configurations (8)

2023 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,880
XL 5.3L 8-cyl RWD 5.3L 8-cyl RWD 15 20 17 $3,880
Yukon 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 20 17 $3,880
XL 5.3L 8-cyl 4WD 5.3L 8-cyl 4WD 15 19 16 $4,030
Yukon 6.2L 8-cyl RWD 6.2L 8-cyl RWD 14 20 16 $5,020
XL 6.2L 8-cyl RWD 6.2L 8-cyl RWD 14 19 16 $5,020
Show 0 more configurations
2023 GMC Yukon gas configurations: EPA ratings and annual cost (+2)
TrimEngineDriveCityHwyComb.$/yr
XL 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$5,110
Yukon 6.2L 8-cyl 4WD6.2L 8-cyl4WD141816$5,110

4 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2023 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2022 GMC Yukon MPG

16–23 MPG · $3,880–$5,140/yr

Versus 2021: The most efficient configuration stays at 23 MPG. Its annual cost goes from $4,050 to $4,100, $50 more.

Gas · 5.3L, 6.2L
Combined
16–17 MPG
Per year
$3,880–$5,140
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,100–$4,290
See diesel configurations

Gas configurations (16)

2022 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD Automatic 10-spd (Most efficient) 5.3L 8-cyl RWD 15 20 17 $3,880
XL 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 15 20 17 $3,880
Yukon 5.3L 8-cyl 4WD Automatic 10-spd 5.3L 8-cyl 4WD 15 20 17 $3,880
Yukon 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 15 20 17 $3,930
XL 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 15 20 17 $3,930
Yukon 5.3L 8-cyl 4WD Automatic 10-spd 5.3L 8-cyl 4WD 14 19 16 $3,990
Show 6 more configurations
2022 GMC Yukon gas configurations: EPA ratings and annual cost (+10)
TrimEngineDriveCityHwyComb.$/yr
XL 5.3L 8-cyl 4WD Automatic 10-spd5.3L 8-cyl4WD151916$4,080
XL 5.3L 8-cyl 4WD Automatic 10-spd5.3L 8-cyl4WD141916$4,180
Yukon 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD142016$4,900
Yukon 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD142016$4,940
XL 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD141916$4,960
XL 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,020
Yukon 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,020
XL 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD141916$5,080
XL 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,140
Yukon 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,140

8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2022 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 27 23 $4,100
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,290

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

2021 GMC Yukon MPG

16–23 MPG · $3,630–$5,180/yr
Gas · 5.3L, 6.2L
Combined
16–18 MPG
Per year
$3,630–$5,180
See gas configurations
Diesel · 3.0L
Combined
22–23 MPG
Per year
$4,050–$4,280
See diesel configurations

Gas configurations (16)

2021 GMC Yukon gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl RWD Automatic 10-spd (Most efficient) 5.3L 8-cyl RWD 16 20 18 $3,630
XL 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 16 20 18 $3,630
Yukon 5.3L 8-cyl 4WD Automatic 10-spd 5.3L 8-cyl 4WD 16 20 18 $3,650
XL 5.3L 8-cyl 4WD Automatic 10-spd 5.3L 8-cyl 4WD 15 19 17 $3,790
Yukon 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 15 20 17 $3,840
XL 5.3L 8-cyl RWD Automatic 10-spd 5.3L 8-cyl RWD 15 20 17 $3,840
Show 6 more configurations
2021 GMC Yukon gas configurations: EPA ratings and annual cost (+10)
TrimEngineDriveCityHwyComb.$/yr
Yukon 5.3L 8-cyl 4WD Automatic 10-spd5.3L 8-cyl4WD152017$3,840
Yukon 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD152017$4,770
XL 5.3L 8-cyl 4WD Automatic 10-spd5.3L 8-cyl4WD151916$4,080
XL 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD142016$4,900
Yukon 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD142016$4,920
XL 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,070
Yukon 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD141916$5,070
XL 6.2L 8-cyl RWD Automatic 10-spd6.2L 8-cylRWD142016$5,120
XL 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD131916$5,180
Yukon 6.2L 8-cyl 4WD Automatic 10-spd6.2L 8-cyl4WD131916$5,180

8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Diesel configurations (4)

2021 GMC Yukon diesel configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
Yukon 3.0L 6-cyl turbo RWD (Most efficient) 3.0L 6-cyl turbo RWD 21 27 23 $4,050
XL 3.0L 6-cyl turbo RWD 3.0L 6-cyl turbo RWD 21 27 23 $4,050
XL 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,280
Yukon 3.0L 6-cyl turbo 4WD 3.0L 6-cyl turbo 4WD 20 26 22 $4,280

Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the Yukon 5.3L 8-cyl RWD: $5,300 in California and $3,400 in Texas, a $1,900 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2027 standard SUV models.

2025 Chevrolet Tahoe Facelift (T1UC)

2027 Chevrolet Tahoe

17 MPG · $3,900/yr
2025 Chevrolet Suburban LT (T1YC)

2027 Chevrolet Suburban

17 MPG · $3,900/yr
23 Cadillac Escalade-V Base (T1UL)

2027 Cadillac Escalade

17 MPG · $4,810/yr
Ford Expedition Active U717

2027 Ford Expedition

18 MPG · $3,530/yr
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

All GMC Yukon years All GMC models

Frequently asked questions

What gas mileage does the 2021-2027 GMC Yukon get?

EPA rates the 2021-2027 GMC Yukon at 16–23 MPG combined across 100 configurations and 7 model years. The most efficient version, the 2027 XL 3.0L 6-cyl turbo RWD, is rated 23 MPG (21 city, 26 highway). By powertrain: Gas: 16–18 MPG; Diesel: 22–23 MPG.

Which years had the best MPG in the 2021-2027 GMC Yukon?

Every model year of the 2021-2027 GMC Yukon tops out at 23 MPG combined, so no year is better than another.

Did EPA ratings change during the 2021-2027 GMC Yukon?

Yes. Ratings changed in 2022, 2023, 2024, 2025, 2026 and 2027.

How does the 2021-2027 GMC Yukon compare with the previous generation?

The previous generation (2015-2020 GMC Yukon) is rated 16–19 MPG combined and costs $3,410–$5,040 a year to fuel; the 2021-2027 model is rated 16–23 MPG and costs $3,630–$5,180 a year.

How much does it cost to fuel a 2027 GMC Yukon per year?

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Yukon 5.3L 8-cyl RWD costs about $3,900 a year. Across all 12 configurations the cost runs $3,900–$4,930 a year. That is a $1,030 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2027 GMC Yukon 100 miles?

About $26.00 per 100 miles for the Yukon 5.3L 8-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $26.00 and $32.87 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2027 GMC Yukon more efficient in the city or on the highway?

The Yukon 5.3L 8-cyl RWD is rated 15 city and 20 highway MPG, so it is more efficient on the highway, by 5 MPG.

How does the 2027 GMC Yukon compare with other standard SUV configurations?

The Yukon 5.3L 8-cyl RWD costs about $3,900 a year to fuel, $740 more than the class median of $3,160, and less than 3 of 10 standard SUV configurations. The comparison covers all 184 rated standard SUV configurations for MY2027, not weighted by sales.

Is the 2027 GMC Yukon different from the 2026 model?

The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100. EPA lists 12 configurations for 2027 against 12 configurations for 2026. See the 2026 GMC Yukon for that year.