Thanks so much! Even though I always do my scheduled maintenance, I will double-check my tire pressure today...I don't have to worry about accelerating to quickly b/c I usually drive like a grandma!

I am new to this forum and a base Vibe 2004 owner, going on one year (in August, is the anniversary). I have been getting between 29 and 30 MPG in the city/highway driving. Has anyone ever gotten higher than that? If so, how'd you do it?