I have one and I average about 26mpg.
The EPA mileage estimate for the 2006 Scion xB is 26 mpg in the city, 30 mpg on the highway.
The EPA mileage estimate for the 2004 Scion xB is 27 mpg in the city, 32 mpg on the highway.
The EPA mileage estimate for the 2011 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2014 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2008 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2013 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2010 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2012 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2009 Scion xB is 22 mpg in the city, 28 mpg on the highway.
The EPA mileage estimate for the 2005 Scion xB is 27 mpg in the city, 31 mpg on the highway.
Scion xB was created in 2003.
The 2010 Scion xB has 16 valves.