2023 GMC Sierra Mud Terrain Tires 4WDFuel Economy & MPG Ratings

Diesel Standard Pickup Trucks 4WD4-Wheel Drive
City
21
MPG
Highway
23
MPG
Combined
22
MPG

Real-World MPG

Based on 1 owner report via EPA fueleconomy.gov

26.0MPG average+18.2% vs EPA label
EPA combined: 22 MPG · Owner reported avg: 26.0 MPG

Driving mix: City 20% / Highway 80%

Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.

Owner reported MPG for this vehicle averages 26.0 real world MPG based on 1 owner report. EPA combined rating is 22 MPG.

Trim Comparison

Automatic 10-spd
Diesel Diesel
City
21
Hwy
23
Comb
22
Fuel cost: $3,850/yr
Automatic 10-spd
Gasoline or E85 FFV
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
18
Comb
16
Fuel cost: $4,200/yr
Automatic 10-spd
Regular
City
15
Hwy
19
Comb
16
Fuel cost: $4,200/yr
Automatic 10-spd
Premium
City
14
Hwy
17
Comb
15
Fuel cost: $5,450/yr
Annual Fuel Cost
$3,850

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

5-Year Fuel Savings
$-7,250

vs. average new vehicle

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

Environment

CO₂ Tailpipe Emissions
463 g/mile
Annual Petroleum Consumption
16.2 barrels

Specifications

Engine
6.2L 8-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
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$3,061/yr
California
$5.957/gal$4,062/yr
Texas
$3.888/gal$2,651/yr
Florida
$4.136/gal$2,820/yr
New York
$4.522/gal$3,083/yr
Ohio
$4.510/gal$3,075/yr
Washington
$5.591/gal$3,812/yr
Colorado
$4.618/gal$3,149/yr
Minnesota
$4.344/gal$2,962/yr
Massachusetts
$4.448/gal$3,033/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 22 MPG combined. Regular gasoline prices. Actual costs vary.

Recall History

Source: NHTSA

No recalls reported for this vehicle.

Owner-Reported Problems381 complaints

Source: NHTSA

NHTSA has received 381 owner complaints for the 2023 GMC Sierra Mud Terrain Tires 4WD. Top reported issues include engine, power train and structure. The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Engine
188
Power Train
71
Structure
52
Electrical System
51
Fuel System
23
Advanced Safety (ADAS)
17
Brakes
13
Lighting
10

2023 GMC Sierra Mud Terrain Tires 4WD problems by category: Engine: 188 complaints, Power Train: 71 complaints, Structure: 52 complaints, Electrical System: 51 complaints, Fuel System: 23 complaints, Advanced Safety (ADAS): 17 complaints, Brakes: 13 complaints, Lighting: 10 complaints.

9
Crashes Reported
4
Fires Reported
2
Injuries Reported

Sample Owner Complaints

Power TrainFiled: 01/26/2026ODI#11713333
I am writing to formally file a safety complaint regarding the ongoing recall of the GMC/Chevrolet 6.2-liter V8 engine and what I believe to be an inadequate and insufficient remedy being provided to …
Power TrainFiled: 02/17/2025ODI#11643129
Driving truck at highway speed and went to pass a group of slower vehicles on my right. I increased speed to 75 mph and the engine stopped and I had no acceleration. Engine would not shift into Neutra…
Electrical SystemFiled: 02/15/2025ODI#11642925
The tailgate on my truck opened while I was driving and I was unaware until I got to my destination. I had a utility trailer attached at the time and my tailgate was damaged from the jack on the trail…

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 Mud Terrain Tires 4WD MPG History
See how this model's fuel economy changed by year

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