Chevrolet Tahoe and Suburban Fuel Tank Size by Year
Newest year we have: the 2025 Chevrolet Tahoe and Suburban manual lists 24.0 gal (Short Wheelbase) or 28.0 gal (Long Wheelbase). Across 2012–2025 it changes by year and version, so check yours below. Each year links to its owner's manual page.
| Year | Fuel tank size | Source |
|---|---|---|
| 2025 | 24.0 gal Short Wheelbase28.0 gal Long Wheelbase | 2025 manual → |
| 2024 | 24.0 gal Short Wheelbase28.0 gal Long Wheelbase | 2024 manual → |
| 2021 | 24.0 gal Short Wheelbase28.0 gal Long Wheelbase | 2021 manual → |
| 2020 | 26.0 gal Short Wheelbase31.5 gal Long Wheelbase | 2020 manual → |
| 2019 | 26.0 gal Short Wheelbase31.5 gal Long Wheelbase | 2019 manual → |
| 2018 | 26.0 gal Short Wheelbase31.5 gal Long Wheelbase | 2018 manual → |
| 2017 | 26.0 gal Short Wheelbase31.5 gal Long Wheelbase | 2017 manual → |
| 2015 | 26.0 gal Short Wheelbase31.5 gal Long Wheelbase | 2015 manual → |
| 2014 | 26.0 gal Regular31.5 gal Extended 1500 Series39.0 gal Extended 2500 Series | 2014 manual → |
| 2013 | 26.0 gal Regular31.5 gal Extended 1500 Series39.0 gal Extended 2500 Series | 2013 manual → |
| 2012 | 26.0 gal Regular31.5 gal Extended 1500 Series39.0 gal Extended 2500 Series | 2012 manual → |
Years are the 2012–2025 model years we have the owner's manual for. Open a year to see every version and the page it's printed on.
Confirm with your own manual, dipstick or door-jamb label.
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