2021-2027 Chevrolet Suburban MPG & Fuel Cost

EPA rates the 2021-2027 Chevrolet Suburban at 16–23 MPG combined across 50 configurations and 7 model years. The most efficient version, the 2027 Suburban 3.0L 6-cyl turbo RWD, is rated 23 MPG (21 city, 26 highway). By powertrain: Gas: 16–18 MPG; Diesel: 22–23 MPG.

Every model year of the 2021-2027 Chevrolet Suburban tops out at 23 MPG combined, so no year is better than another.

Yes. Ratings changed in 2022, 2023, 2024, 2025, 2026 and 2027.

The previous generation (2015-2020 Chevrolet Suburban) is rated 16–19 MPG combined and costs $3,410–$5,040 a year to fuel; the 2021-2027 model is rated 16–23 MPG and costs $3,630–$5,180 a year.

Driving 15,000 miles a year at regular gasoline $4.36/gal (U.S. average, Sep 2026), the Suburban 5.3L 8-cyl RWD costs about $3,900 a year. Across all 6 configurations the cost runs $3,900–$5,020 a year. That is a $1,120 difference between the cheapest and the costliest configuration.

About $26.00 per 100 miles for the Suburban 5.3L 8-cyl RWD at regular gasoline $4.36/gal (U.S. average, Sep 2026), and between $26.00 and $33.47 across all configurations. That is the annual cost over 15,000 miles divided by 150.

The Suburban 5.3L 8-cyl RWD is rated 15 city and 20 highway MPG, so it is more efficient on the highway, by 5 MPG.

The Suburban 5.3L 8-cyl RWD costs about $3,900 a year to fuel, $740 more than the class median of $3,160, and less than 3 of 10 standard SUV configurations. The comparison covers all 184 rated standard SUV configurations for MY2027, not weighted by sales.

The most efficient configuration stays at 23 MPG. Its annual cost stays at $4,100. EPA lists 6 configurations for 2027 against 6 configurations for 2026. See the 2026 Chevrolet Suburban for that year.