The Toyota Sienna does 23.1 mpg combined (21.1 city, 26.4 highway), which works out to about $1,662 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 2.5L 4-cyl Hybrid does 36 mpg while 3L 6-cyl does 19 — a difference of $954 a year. Against other V6 cars it sits above the average of 19.9 mpg.
Every Toyota Sienna engine, compared
Gas mileage on the Toyota Sienna ranges from 36 down to 19 depending on which engine sits under the bonnet — a spread of $954 a year across 5 versions of the same car. Picking the right one often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.5L 4-cyl Hybrid | 36 / 36 | 2021–2026 | $1,067 | |
| 2.7L 4-cyl | 19 / 24 | 2011–2013 | $1,829 | |
| 3.5L 6-cyl | 18 / 24.9 | 2007–2020 | $1,864 | |
| 3.3L 6-cyl | 17 / 24.3 | 2004–2006 | $1,990 | |
| 3L 6-cyl | 16.5 / 22.7 | 1998–2003 | $2,021 |
What that actually costs
The Toyota Sienna burns a gallon every 23.1 miles, so 12,000 miles takes about 519 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.139 |
| Fuel per year | $1,662 |
| Fuel over five years | $8,310 |
| Against other V6 cars | −$268 a year |
| EPA's own estimate | $2,856 a year |
City or highway — who is this car for
The Toyota Sienna gives up 5.3 mpg the moment you leave the motorway — 26.4 out there against 21.1 in town, a 25% drop worth $365 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 21.1 mpg | $1,820 a year if you only drive in town |
| Highway | 26.4 mpg | $1,455 a year if you mostly commute |
| Gap | +5.3 mpg (25%) | Typical for its type |
How the Sienna changed over the years
The Sienna peaked in 2026 at 36 mpg (36 city, 36 highway) and was at its thirstiest in 2010 at 19 — 17 mpg apart, or $954 a year in fuel between buying one year and the other. The 2026 car does 36. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 36 / 36 | 1 | $1,067 | |
| 2025 | 36 / 36 | 1 | $1,067 | |
| 2024 | 36 / 36 | 1 | $1,067 | |
| 2023 | 36 / 36 | 1 | $1,067 | |
| 2022 | 36 / 36 | 1 | $1,067 | |
| 2021 | 36 / 36 | 1 | $1,067 | |
| 2020 | 19 / 26 | 1 | $1,829 | |
| 2019 | 19 / 27 | 1 | $1,745 | |
| 2018 | 19 / 27 | 1 | $1,745 | |
| 2017 | 19 / 27 | 1 | $1,745 | |
| 2016 | 18 / 25 | 1 | $1,829 | |
| 2015 | 18 / 25 | 1 | $1,829 | |
| 2014 | 18 / 25 | 1 | $1,829 | |
| 2013 | 18.5 / 24.5 | 2 | $1,829 | |
| 2012 | 18.5 / 24.5 | 2 | $1,829 | |
| 2011 | 18.5 / 24 | 2 | $1,873 | |
| 2010 | 17 / 23 | 1 | $2,021 | |
| 2009 | 17 / 23 | 1 | $2,021 | |
| 2008 | 17 / 23 | 1 | $2,021 | |
| 2007 | 17 / 24 | 1 | $2,021 | |
| 2006 | 17 / 24 | 1 | $2,021 | |
| 2005 | 17 / 24 | 1 | $2,021 | |
| 2004 | 17 / 25 | 1 | $1,920 | |
| 2003 | 17 / 23 | 1 | $2,021 | |
| 2002 | 17 / 23 | 1 | $2,021 | |
| 2001 | 17 / 23 | 1 | $2,021 | |
| 2000 | 16 / 22 | 1 | $2,021 | |
| 1999 | 16 / 22 | 1 | $2,021 | |
| 1998 | 16 / 23 | 1 | $2,021 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 32 EPA ratings of the Toyota Sienna — 5 engines across 1998–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $2,856. Full method.
Frequently asked questions
What mpg does the Toyota Sienna get?
23.1 mpg combined on average — 21.1 in the city and 26.4 on the highway, per EPA ratings across 1998–2026.
How much does a Toyota Sienna cost in fuel per year?
About $1,662 at 12,000 miles and $3.20 a gallon — roughly $8,310 over five years, or 0.139 dollars a mile.
Which Sienna engine is the most economical?
The 2.5L 4-cyl Hybrid at 36 mpg, against 19 for the 3L 6-cyl — a difference of about $954 a year.
Is the Sienna good on fuel compared with similar cars?
Against other V6 cars it sits above the average of 19.9 mpg, computed across 4940 ratings.
Are these real-world Sienna figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Toyota Sienna is $2,856 against the $1,662 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 36 and 19 mpg versions of this car is smaller than the spread between two drivers of the same one.
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