So I just took delivery of my 2018 F250 last week, started to notice a raw gas smell when near the drivers door, looked around by gas tank etc. but after not finding anything crawled under and found the leak was where the lines attach from the tank and heads to the motor, there are green plastic clamps where they connect, one broken in half and leaking ever so slightly. If you smell gas look there first. I can't imagine why Ford would use a plastic attachment on a critical part location to secure fuel lines?? Especially considering they didn't hold up on a brand new truck!!! Shop just called and the entire line has to be replaced..........