2021 · Midsize & Large SUV · Diesel
2021 GMC Yukon Diesel MPG & fuel economy
The 2021 GMC Yukon Diesel is a midsize or large SUV offered in 2 EPA-rated configurations. The most efficient version returns 23 MPG combined (21 city / 27 highway) on diesel. Across the lineup, combined ratings range from 22 to 23 MPG. Among 65 midsize & large SUVs rated for 2021, it ranks 22nd for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,413 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2021 GMC Yukon Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.9 km/L in the city and 11.5 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 21 | 8.9 | 11.2 |
| Highway | 27 | 11.5 | 8.7 |
| Combined | 23 | 9.8 | 10.2 |
How it ranks among 2021 Midsize & Large SUVs
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Yukon Diesel MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.0L 6-cyl turbo · 10-speed automatic Yukon 2WD |
Diesel | 21 MPG | 27 MPG | 23 MPG | — | $2,413 |
| 4WD · 3.0L 6-cyl turbo · 10-speed automatic Yukon XL 4WD |
Diesel | 20 MPG | 26 MPG | 22 MPG | — | $2,523 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 3.0L 6-cyl turbo
- Transmission
- 10-speed automatic
- Drivetrain
- RWD
- Tailpipe CO₂
- 437 g/mi
- EPA fuel economy score
- 5/10
- EPA greenhouse gas score
- 4/10
2021 GMC Yukon Diesel vs. rivals
Compare the 2021 Yukon Diesel
With any other car from any year, including other Yukon Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 2021 GMC Yukon (18 MPG)
Frequently asked questions
What is the gas mileage of the 2021 GMC Yukon Diesel?
Up to 23 MPG combined (21 city / 27 highway); ratings range from 22 to 23 MPG depending on configuration.
What fuel does the 2021 GMC Yukon Diesel use?
Diesel.
What is the fuel average in km/L for the 2021 GMC Yukon Diesel?
The 2021 GMC Yukon Diesel's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.9 km/L in the city and 11.5 km/L on the highway.
How much does it cost to fuel the 2021 GMC Yukon Diesel per year?
About $2,413 at 15,000 miles a year with $3.70/gal diesel fuel, or $16.09 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.