Iphone: Its called "MyMPG" you enter every fill up....tracks average cost of gas, ave mpg, etc....its so easy there is no reason you shouldn't be using it...oh whats that? its free....it was when i downloaded it a month ago...im a big fan....i use it to document how bad my subaru's gas mileage is...
I'm using aCar by Armand Avanes for Android. It tracks tons of stuff I don't use it for, does graphs and all kinds of things. It has a free version and a paid version. Since I use it for work, I bought it for the $4-6 or whatever it was. The paid version also does scheduled backups. For someone who's looking for a bigger, more robust app, aCar is also great. Stable, easy to use, regular updates with new features and smarter user interface tweaks. I'm not sure this is what you intended your thread to be for or not saucebag, but since someone else also mentioned an app, I figured I'd throw the one I've used in to the mix too. Sorry if we've hijacked it. Anyone else?
I use GasBuddy to help me see what all the local prices are for the toptiergas.com stations in town (my only choices here are Shell, Mobil & BP), it would be nice if the gas finder app could be combined with an app like acar or mympg for recording/calculating your mpg, I'm trying to keep the number of apps on my android down, my recent "app diet" resulted in my thunderbolt functioning much faster.
we don't all have the luxury of living a mile from our job like you obviously do if you're adding gas once a month when people ask me if I think government MPG mandates are fair I always say, "No". they should limit the amount of gas people buy every week, that would force people who live far from work to buy hybrids, but people like you who live so close to work could buy a plymouth roadrunner if you wanted, or you could buy a hybrid and sell your unused allotment of gas . . . my $.02
I use, on a droid, an app simply called "Mileage". Besides the usual number crunching for MPG's... it can and will remind you of service intervals (oil etc). And yes... free.
