Just took my first highway trip and averaged 26.5 MPG. While I realize that this is around the EPA rating, I am looking for ideas to do better. I think I have city figured out but this is a new ballgame, since I am unable to get the ICE to turn off consistantly. Any ideas?? Thanks.

BTW, I am thinking of going with Mobil 1 synthetic at the first oil change.....anyone done it?????