fredmatta

Hi, The last two times I filled my gas tank, It would take like 1 gallon, then gas pump stops like the tank is full. Knowing there is no way it could be full, I have to keep manually pumping gas in. It still takes another 10 gallons or more, and I have to put in in like a half gallon at a time. 1- tried over 3 different gas stations 2- tried turning the gas nozel up, down, side to side, and pulling out the nozel a little here and there. 3- I am not getting any messages on the dashboard 4- Also I put some gas cleaner (one of those small bottles from adv auto) Any ideas what would cause this?