I usually drive right around 57-60 mph. I'm average 35-36 mpg. The colder temps in the low to mid 40's on my morning commute are dragging down my mpgs. I'm keeping 38 psi in my tires also. 29 psi is way too low for my tastes.Did a beautiful drive to the top of PCH near Point Magu and back through Decker canyon. Was with my wife so drove VERY slowly. And sure enough, 30 mpg. Don't see to get above that for any drives. What kind of average speeds are you guys doing?