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2007 Sienna Limited AWD
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Azul yours is a 3.5L engine. 04-06 had the 3.3L engine. Getting 17 mpg around town is not bad at all.
Brand new we were getting 19 city and 22 highway, about 3 years ago we were getting 14 city 16-17 highway. I replaced the plugs, 3 rear coils, changed differential oil, transfer case oil, transmission fluid and coolant and it got better. It can probably improve if we change our driving habits :).
 
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