Chevrolet Tahoe Fuel Tank by Year

Which catalog years and configurations are the most fuel efficient, plus tank size and estimated range where both exist.

The largest stored change occurs between 2000 and 2001, when highway mpg, city mpg, and tank change.

Key changes

2001
Stored figures changed
Highway MPG +2 mpg · City MPG +1 mpg · Tank −4.0 gal
2008
Stored figures changed
Highway MPG −2 mpg · City MPG −2 mpg
2009
Stored figures changed
Highway MPG +1 mpg · City MPG +1 mpg
2015
Stored figures changed
Highway MPG +2 mpg · City MPG +1 mpg
2021
Stored figures changed
Highway MPG −2 mpg · City MPG +1 mpg · Tank −2.0 gal

Year	Tank	City	Highway	Est. hwy range
2023	24.0 gal	14–15 mpg	18–20 mpg	480 mi
2022	24.0 gal	14–15 mpg	19–20 mpg	480 mi
2021	24.0 gal	14–16 mpg	19–20 mpg	480 mi
2020	26.0 gal	15 mpg	21–22 mpg	572 mi
2019	26.0 gal	15 mpg	21–22 mpg	572 mi
2018	26.0 gal	16 mpg	22–23 mpg	598 mi
2017	26.0 gal	16 mpg	22–23 mpg	598 mi
2016	26.0 gal	16 mpg	22–23 mpg	598 mi
2015	26.0 gal	16 mpg	22–23 mpg	598 mi
2014	26.0 gal	15 mpg	21 mpg	546 mi
2013	26.0 gal	15 mpg	21 mpg	546 mi
2012	26.0 gal	15 mpg	21 mpg	546 mi
2011	26.0 gal	15 mpg	21 mpg	546 mi
2010	26.0 gal	15 mpg	21 mpg	546 mi
2009	26.0 gal	14–15 mpg	19–21 mpg	546 mi
2008	26.0 gal	14 mpg	19–20 mpg	520 mi
2007	26.0 gal	15–16 mpg	20–22 mpg	572 mi
2006	26.0 gal	15–16 mpg	19–20 mpg	520 mi
2005	26.0 gal	15–16 mpg	19–20 mpg	520 mi
2004	26.0 gal	15–16 mpg	19 mpg	494 mi
2003	26.0 gal	15 mpg	19 mpg	494 mi
2002	26.0 gal	14–15 mpg	17–19 mpg	494 mi
2001	26.0 gal	14–15 mpg	17–20 mpg	520 mi
2000	26.0–30.0 gal	12–14 mpg	16–18 mpg	540 mi
1999	30.0 gal	12–14 mpg	16–18 mpg	540 mi