2025 GMC Sierra 4WDFuel Economy & MPG Ratings

Diesel Standard Pickup Trucks 4WD4-Wheel Drive
2025 GMC Sierra 4WD

Photo: sv1ambo. CC BY 2.0. via Wikimedia Commons

City
22
MPG
Highway
26
MPG
Combined
24
MPG

Trim Comparison

Automatic 10-spd
Diesel Diesel
City
22
Hwy
26
Comb
24
Fuel cost: $3,500/yr
Automatic 8-spd
Regular
City
17
Hwy
19
Comb
18
Fuel cost: $3,750/yr
Automatic 10-spd
Gasoline or E85 FFV
City
15
Hwy
19
Comb
17
Fuel cost: $3,950/yr
Automatic 10-spd
Regular
City
15
Hwy
19
Comb
17
Fuel cost: $3,950/yr
Automatic 8-spd
Regular
City
17
Hwy
18
Comb
17
Fuel cost: $3,950/yr
Automatic 10-spd
Regular
City
15
Hwy
19
Comb
17
Fuel cost: $3,950/yr
Automatic 10-spd
Premium
City
15
Hwy
19
Comb
16
Fuel cost: $5,100/yr
Automatic 10-spd
Regular
City
15
Hwy
19
Comb
16
Fuel cost: $4,200/yr
Annual Fuel Cost
$3,500

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-5,500

vs. average new vehicle

EPA Fuel Economy Score: 5/10
GHG Score: 4/10

Environment

CO₂ Tailpipe Emissions
428 g/mile
Annual Petroleum Consumption
14.9 barrels

Specifications

Engine
6.2L 6-cyl
Transmission
10-speed Automatic
Drivetrain
4WD
Body Style
Pickup Truck
GVWR
Class 2-3 (6,001–10,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
3L, 6-cylinder
Induction Type
with Sport Mode
Efficiency Tech
Auto Start-Stop
Fuel Type
Diesel

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$2,806/yr
California
$5.957/gal$3,723/yr
Texas
$3.888/gal$2,430/yr
Florida
$4.136/gal$2,585/yr
New York
$4.522/gal$2,826/yr
Ohio
$4.510/gal$2,819/yr
Washington
$5.591/gal$3,494/yr
Colorado
$4.618/gal$2,886/yr
Minnesota
$4.344/gal$2,715/yr
Massachusetts
$4.448/gal$2,780/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 24 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems79 complaints

Source: NHTSA

NHTSA has received 79 owner complaints for the 2025 GMC Sierra 4WD. Top reported issues include engine, electrical system and power train. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Engine
33
Electrical System
19
Power Train
15
Advanced Safety (ADAS)
10
Visibility / Wipers
6
Speed Control
5
Fuel System
5
Steering
3

2025 GMC Sierra 4WD problems by category: Engine: 33 complaints, Electrical System: 19 complaints, Power Train: 15 complaints, Advanced Safety (ADAS): 10 complaints, Visibility / Wipers: 6 complaints, Speed Control: 5 complaints, Fuel System: 5 complaints, Steering: 3 complaints.

7
Crashes Reported
0
Fires Reported
0
Injuries Reported

Sample Owner Complaints

Power TrainFiled: 02/05/2026ODI#11715737
I was driving and the engine abruptly stalled. The truck self-shifted to Neutral. Once stopped, I shifted to Park to attempt a restart. It would not crank. I was on a 2-lane road so I did not have a s…
Electrical SystemFiled: 10/27/2025ODI#11695954
My vehicle is equipped with multiple safety systems offered by general motors. Since purchasing my vehicle new, I have had a persistent and recurring issue related to the vehicle safety system, which …
EngineFiled: 06/04/2025ODI#11664839
The vehicle was purchased for the express purpose of towing a 6,600 lbs Travel Trailer. This truck is equipt with the 3 liter Diesel engine. While towing the truck computer counts down milage availa…

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

GMC Sierra 4WD MPG History
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