Ernie  Lopez 
2016 Toyota Sienna Minivan SE Premium 8-Passenger 4dr Minivan (3.5L 6cyl 6A)
15.5 mpg
 You will get 15.5 mpg if u drive all streets and that would be fine if you could tow more than 3500 pounds . My 2010 tundra has a 5.7 v8 and gets same mpg . Sad