Finally did a longer road trip, on the way home I filled up just before getting on the highway. Did mostly 70-75 with the A/C on about half the time. Pulled off twice for rest areas, went over the Grapevine (4000 elev.) and hit a little bit of LA traffic (on a Sunday). South down 99 to 5, Merced to San Diego, filled up just off the freeway when I hit SD and did the math. 36mpg! I am quite happy! I seem to average 28-29 in San Diego daily driving, so I'm happy regardless!