My first increase
 

Possibly just due to moderately cleaner roads and slightly higher temps, but I went from 29-30 on my first three tanks to 33.7 on my last one.

Only change was air in the tires and I think somewhat improved driving technique.

Good job dude but what kinda car are you driving?

96 geo prizm 3 speed auto

justjohn -

Most egg-salad! When I told Pikachu, he was quite pleased :

http://ecomodder.com/forum/member-cf...pikachu-01.gif

CarloSW2

Cool cool but i'm sure with that mileage i'm sure there's still a bit of room for even more improvements