2024 · Full-Size Pickup · Diesel

2024 GMC Sierra Diesel MPG & fuel economy

The 2024 GMC Sierra Diesel is a full-size pickup offered in 4 EPA-rated configurations. The most efficient version returns 25 MPG combined (23 city / 29 highway) on diesel. Across the lineup, combined ratings range from 19 to 25 MPG. That's down 1 MPG from the 2023 model. Among 19 full-size pickups rated for 2024, it ranks 13th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,220 a year to fuel.

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Combined 25 MPG 23 MPG city · 29 MPG hwy

Driving range — not published for this model

Your fuel cost $2,220 15,000 mi/yr · $14.80 per 100 mi

Class rank, 2024 #13 of 19 Full-Size Pickups by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Diesel $/gal

Fuel average

The 2024 GMC Sierra Diesel's fuel average is 10.6 km/L (9.4 L/100 km), or 25 MPG combined: 9.8 km/L in the city and 12.3 km/L on the highway.

	MPG	km/L	L/100 km
City	23	9.8	10.2
Highway	29	12.3	8.1
Combined	25	10.6	9.4

How it ranks among 2024 Full-Size Pickups

Full class ranking →

1Rivian R1T84 MPGe $1,077
2Ford F-150 Lightning70 MPGe $1,293
3Chevrolet Silverado EV67 MPGe $1,364
4Toyota Tacoma Hybrid24 MPG $1,938
5Ford F150 Hybrid23 MPG $2,022
···
13GMC Sierra Diesel25 MPG $2,220
···
19Nissan Titan17 MPG $3,485

2024 Sierra DieselOther full-size pickupsClass median: $2,214/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

Sierra Diesel MPG across model years

Full history →

4 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 3.0L 6-cyl turbo · 10-speed automatic Sierra 2WD	Diesel	23 MPG	29 MPG	25 MPG	—	$2,220
4WD · 3.0L 6-cyl turbo · 10-speed automatic Sierra 4WD	Diesel	23 MPG	27 MPG	24 MPG	—	$2,312
4WD · 3.0L 6-cyl turbo · 10-speed automatic Sierra Mud Terrain Tires 4WD	Diesel	21 MPG	23 MPG	22 MPG	—	$2,523
4WD · 3.0L 6-cyl turbo · 10-speed automatic Sierra 4WD AT4X	Diesel	19 MPG	20 MPG	19 MPG	—	$2,921

Specs (most efficient configuration)

Fuel: Diesel
Engine / motor: 3.0L 6-cyl turbo
Transmission: 10-speed automatic
Drivetrain: RWD
Tailpipe CO₂: 399 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2024 GMC Sierra Diesel vs. rivals

vs Ford F150 21 MPG · $2,214/yr F150 saves $6/yr vs Nissan Frontier 21 MPG · $2,214/yr Frontier saves $6/yr vs Honda Ridgeline 21 MPG · $2,214/yr Ridgeline saves $6/yr vs Chevrolet Silverado Diesel 26 MPG · $2,135/yr Silverado Diesel saves $85/yr vs Chevrolet Silverado 20 MPG · $2,325/yr Sierra Diesel saves $105/yr vs Toyota Tundra 20 MPG · $2,325/yr Sierra Diesel saves $105/yr vs Ram 1500 20 MPG · $2,325/yr Sierra Diesel saves $105/yr vs Ford Ranger 22 MPG · $2,114/yr Ranger saves $106/yr vs Jeep Gladiator 19 MPG · $2,447/yr Sierra Diesel saves $227/yr vs GMC Sierra 20 MPG · $2,325/yr Sierra Diesel saves $105/yr vs Nissan Titan 17 MPG · $3,485/yr Sierra Diesel saves $1,265/yr

Compare the 2024 Sierra Diesel

With any other car from any year, including other Sierra Diesel model years. Type a year to jump, e.g. "2015 Accord".

Same year, other powertrains: 2024 GMC Sierra (20 MPG)

Frequently asked questions

What is the gas mileage of the 2024 GMC Sierra Diesel?

Up to 25 MPG combined (23 city / 29 highway); ratings range from 19 to 25 MPG depending on configuration.

What fuel does the 2024 GMC Sierra Diesel use?

Diesel.

What is the fuel average in km/L for the 2024 GMC Sierra Diesel?