I bought my 2013 SR5 in August. I have a little over 6,000 miles on it now. My commute to work is from south San Jose to Sunnyvale, which is about 25 miles in traffic.
City and Traffic: 16-18 mpg.
Freeway @ 70-75mph: 20-22mpg
Freeway at 60-65mph: up to 34mpg
I was amazed when I got the 32-34...