I live in SF and work in SJ (~100 mile round trip). I usually take I-280. Sometimes I-101 if it's not rush hour. I'm curious if any one else had the same commute I do (and what kind of mileage you are getting).
I have a similar commute but on the East Bay side. I go from Dublin -> Oakland -> SJ. Then SJ -> Dublin back. ~100mi/day. I've been averaging between 45-50mpg, but my Prius isn't fully broken in just yet. I have about 2500 miles on it. -Peter
I live in Milpitas and have a daily commute to Daly City to San Fancisco back to Milpitas. Usually on 101. About 105-110 miles a day. I'm averaging about 43 MPG. I lose about 3-4 MPG with the tC wheels.