Ok, so I fill up completely at the station this morning and drive home, a few hours later, i come outside and gasoline has leaked out of the cap and down the side of the truck, making the paint bubble up as it went. So I open the gas cap, and the gas starts pouring out onto the ground, probably a cup came out, then i jumped on my back bumper a bit to shake some more out so when i made a turn or something it wouldnt just leak out again (I need a new cap). Anywhoo, i scrape off all the paint and put some rustoleum on it about 20 minutes ago, go outside to put on a coat of paint just about 5 minutes ago and gas is dripping back out of the cap, i unscrew the cap and the gas level is back to where it was at first, brimming at the rim! Why the hell is there more gasoline in my tank now than was 20 minutes ago, I havent done a thing to it!