I'm getting about 18 city and 25 hwy on a 98 with 150000 miles.
The 2003 Toyota Sienna gets an estimated 17 MPG (city) and 23 MPG (hwy).
According to search on Edmunds the Toyota Sienna averages between 18 and 22 MPG. There are too many different models to be more specific.
17 mpg in express ways, 14 in city traffic.
The EPA mileage estimate for the 2007 Toyota Sienna is 17 mpg in the city, 24 mpg on the highway.
The EPA mileage estimate for the 2014 Toyota Sienna is 18 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2004 Toyota Sienna is 17 mpg in the city, 25 mpg on the highway.
The EPA mileage estimate for the 2010 Toyota Sienna is 17 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2001 Toyota Sienna is 17 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2003 Toyota Sienna is 17 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2008 Toyota Sienna is 17 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2006 Toyota Sienna is 17 mpg in the city, 24 mpg on the highway.
The EPA mileage estimate for the 2002 Toyota Sienna is 17 mpg in the city, 23 mpg on the highway.