Social issue

I am making a game where all you have to do is get the answer to the factor triangle right and the gas price goes down. I got my average prices from http://gasbuddy.com/gb_gastemperaturemap.aspx. It has the whole U.S. and they have the gas prices by county and zip code. it has every gas station on it. If you get a low gas price on the game, you get a hybrid. If you get a high price, you will get a gas guzzler. I hope everybody thinks it is fun when I get it done.