Did 1,680 miles the last 10 days. All but 150 were highway miles at 75-80 mph. We got 30.5 mpg for the trip. The highest for a tank was 31.5 mpg. The car has 14,000 miles on it. Easily the best we’ve seen. I guess she’s broken in.

 

That’s quite good. I don’t have enough miles on my RX350 or enough highway driving to be sure but I suspect I would get similar.