GMC gas tank sizes
41 models, tanks from 14.8–42.0 gallons. Pick one for every year and trim.
Current models
Canyon2004–2027 · 19.0–21.4 gal
Savana1996–2026 · 31.0 gal
Savana Cargo1996–2026 · 31.0 gal
Sierra 15001990–2026 · 24.0–34.0 gal
Sierra 2500HD2001–2026 · 26.0–36.0 gal
Sierra 3500HD2007–2026 · 34.0–36.0 gal
Terrain2010–2027 · 14.8–18.8 gal
Yukon1992–2027 · 24.0–30.0 gal
Yukon XL2000–2027 · 28.0–39.0 gal
Older models
Acadia2007–2023 · 19.0–22.0 gal
Acadia Limited2017 · 22.0 gal
Envoy1998–2009 · 18.0–22.0 gal
Envoy XL2002–2006 · 25.0–25.5 gal
Envoy XUV2004–2005 · 25.0 gal
Jimmy1990–2001 · 18.0–31.0 gal
R/V 3500 Series1990–1991 · 20.0–40.0 gal
Rally Wagon1990–1996 · 22.0–33.0 gal
S-151990 · 20.0 gal
S-15 Jimmy1990–1991 · 20.0 gal
Safari1990–2005 · 25.0–27.0 gal
Safari Cargo1990–2005 · 25.0–27.0 gal
Sierra 1500 Classic2007 · 26.0–34.0 gal
Sierra 1500 Hybrid2009–2013 · 26.0 gal
Sierra 1500 Limited2019–2022 · 24.0–28.0 gal
Sierra 1500HD2001–2006 · 26.0 gal
Sierra 1500HD Classic2007 · 26.0 gal
Sierra 25001990–2004 · 25.0–34.0 gal
Sierra 2500HD Classic2007 · 26.0–34.0 gal
Sierra 35001990–2006 · 34.0–35.0 gal
Sierra 3500 Classic2007 · 34.0–35.0 gal
Sierra C32001 · 26.0 gal
Sierra Classic 15001999 · 25.0 gal
Sierra Classic 25001999–2000 · 25.0–34.0 gal
Sierra Classic 35001999–2000 · 34.0 gal
Sonoma1991–2004 · 17.0–20.0 gal
Suburban1990–1999 · 37.0–42.0 gal
Syclone1991 · 20.0 gal
Typhoon1992–1993 · 20.0 gal
Vandura1990–1996 · 22.0–33.0 gal
Yukon Denali2000 · 29.5 gal
Yukon Hybrid2008–2013 · 24.0–25.0 gal
Tank sizes are in US gallons, across every year of that model.