How large is the Toyota Sienna gas tank?
The current Toyota Sienna carries a fuel tank of about 13.2 gallons (50 liters).
Fuel-tank size varies across Sienna generations. Since the 2021 redesign, the minivan has been hybrid-only, and Toyota adjusted the tank size to fit the new powertrain and packaging. Earlier generations used larger tanks to extend driving range with a gasoline V6 engine. This article breaks down the tank capacities by era and what drivers can expect in terms of range and fueling needs.
Factory tank sizes by generation
Below is a quick reference to the tank sizes by Sienna generation and configuration:
- 2021–present Sienna (hybrid): 13.2 gallons (50 liters)
- 2011–2020 Sienna (V6 gasoline): 20.0 gallons (75.7 liters)
- 1997–2010 Sienna (early generations): 20.0 gallons (75.7 liters)
Note: Tank size can vary slightly by trim and market. Always check the owner's manual or the driver’s door jamb sticker for the exact capacity on your vehicle.
What that means for driving and fueling
With a smaller tank in the current hybrid generation, drivers can expect longer refill intervals if fuel efficiency remains strong, but the official range depends on EPA estimates and driving conditions. In practice, the 13.2-gallon tank typically yields several hundred miles per tank, with hybrid efficiency playing a sizeable role in overall range.
Summary
The Sienna's gas-tank capacity has varied across generations. The latest model (2021–present) uses about 13.2 gallons, while earlier gasoline-powered generations typically used about 20 gallons. Prospective buyers and owners should verify the exact figure for their trim and region via official specs or the VIN plate.
