2021 · Midsize & Large SUV · Gas
2021 Chevrolet Suburban MPG & fuel economy
The 2021 Chevrolet Suburban is a midsize or large SUV offered in 8 EPA-rated configurations. The most efficient version returns 18 MPG combined (16 city / 20 highway) on regular gasoline. Across the lineup, combined ratings range from 16 to 18 MPG. Efficiency is unchanged from the 2020 model. Among 65 midsize & large SUVs rated for 2021, it ranks 32nd for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,583 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2021 Chevrolet Suburban's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.8 km/L in the city and 8.5 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 16 | 6.8 | 14.7 |
| Highway | 20 | 8.5 | 11.8 |
| Combined | 18 | 7.7 | 13.1 |
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.
Suburban MPG across model years
Full history →8 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 5.3L 8-cyl · 10-speed automatic Suburban 2WD |
Gas | 16 MPG | 20 MPG | 18 MPG | — | $2,583 |
| 4WD · 5.3L 8-cyl · 10-speed automatic Suburban 4WD |
Gas | 15 MPG | 19 MPG | 17 MPG | — | $2,735 |
| RWD · 5.3L 8-cyl · 10-speed automatic Suburban 2WD |
Gas | 15 MPG | 20 MPG | 17 MPG | — | $2,735 |
| 4WD · 5.3L 8-cyl · 10-speed automatic Suburban 4WD |
Gas | 15 MPG | 19 MPG | 16 MPG | — | $2,906 |
| RWD · 6.2L 8-cyl · 10-speed automatic Suburban 2WD |
Gas | 15 MPG | 20 MPG | 17 MPG | — | $3,485 |
| 4WD · 6.2L 8-cyl · 10-speed automatic Suburban 4WD |
Gas | 14 MPG | 19 MPG | 16 MPG | — | $3,703 |
| RWD · 6.2L 8-cyl · 10-speed automatic Suburban 2WD |
Gas | 14 MPG | 20 MPG | 16 MPG | — | $3,703 |
| 4WD · 6.2L 8-cyl · 10-speed automatic Suburban 4WD |
Gas | 13 MPG | 19 MPG | 16 MPG | — | $3,703 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 5.3L 8-cyl
- Transmission
- 10-speed automatic
- Drivetrain
- RWD
- Tailpipe CO₂
- 492 g/mi
- EPA fuel economy score
- 3/10
- EPA greenhouse gas score
- 3/10
2021 Chevrolet Suburban vs. rivals
Compare the 2021 Suburban
With any other car from any year, including other Suburban model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 2021 Chevrolet Suburban Diesel (23 MPG)
Frequently asked questions
What is the gas mileage of the 2021 Chevrolet Suburban?
Up to 18 MPG combined (16 city / 20 highway); ratings range from 16 to 18 MPG depending on configuration.
What fuel does the 2021 Chevrolet Suburban use?
Regular gasoline.
What is the fuel average in km/L for the 2021 Chevrolet Suburban?
The 2021 Chevrolet Suburban's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.8 km/L in the city and 8.5 km/L on the highway.
How much does it cost to fuel the 2021 Chevrolet Suburban per year?
About $2,583 at 15,000 miles a year with $3.10/gal regular gas, or $17.22 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.