[userw5]

jjc...you're making me feel good about the mileage we get with our '04 Sienna. We average about 21-22 mpg overall. The onboard computer always displays between 24-25mpg, but I've never seen that in real world calculations.

I've got the 16 inch Michelin Harmony tires. Mobile 1 in the engine.

The Sienna is a heavy vehicle, with all that glass.

Then if you're like us, you're taking the whole family and all of their stuff which adds up. The engine is always working.

I think the difference between 16 and 17 inch tires may make some difference, but not as much as you are seeing.

Good Luck,
Jeff