A month ago i was filling my gas tank and it never shut off and over filled my tank around 10$ (gas station guy was an idiot i was inside you cant pump your own gas here) and the fuel was pouring all over the ground from underneath the car not the gas cap spot and it leaked from under the car all the way home. I took it to a shop and they said they replaced the gas tank gasket now its fine and does not leak unless i fill my tank up over 3/4 of the way then it starts to leak on bumps and corners. anyone know what this could be? its an 06 sti thanks.