Filled the car right up at the weekend to the brim I don't drive my car during the week came home yesterday look like it's spat 5l + over the floor moved the car came home today looks like it's spat more out but no drips leeks to be seen :-(

 

It's probably expanded due to the heat and the residue has leaked out.

Martin

 

Is this common then

 

it could have a leak so far up the tank..once the fuel level has dropped below this then it wont leak..wont be any sign of a drip etc as it will evaporate..im not sure if petrol expands as mentioned but if it does i very much doubt it will expand that much so that you lose 5+ litres

 

I've checked the neck inside the filler cap and can still see petrol so I've hardly lost any but on the floor looks like 5l of diesel the way it's marked the floor but def petrol very very strange

 

Spilt petrol goes a long way, as it is very viscous(thin), so a small leak can look enormous, fuel does expand in heat, if you filled to the brim then that is the problem, NEVER ever on a cossie fill to the brim, just to the first cut off.
There is a small hole in the cap for vent, as well as a pipe that runs around the side of the tank for venting in use, it's likely to have come out the cap itself, then there is a hole in the bottom of the "dish" area around the filler/cap for it to leak through(meant for water).
tabetha

 

Lesson lernt

 

You're not the first and won't be the last, made much worse boo boos myself!!
tabetha