A vapor leak in the fuel system.A vapor leak in the fuel system.
Probably not the tank but the fill tube, or fuel lines coming from the fuel pump
a leak
you find out were the water is coming from after you fill it up with water.
Every once in a while it will fix your evap leak if you replace the fuel cap, but usually the leak is somewhere else. A good repair facillity will have a smoke machine that can be used to fill the system with smoke and locate the leak by seeing where the smoke comes out.
because your car has a gas leak
Where is the leak from? The fuel filler? The fuel tank? A fuel line? Does the leak occur only when the engine is running? Does the leak only occur when the vehicle is parked on an inclined surface?
Fuel gauge tells you when to fill up.
If the gas isn't leaking while the engine is running and you have half a tank, then the problem is with the fuel tank itself. You either have a hole in the upper half of the tank, or the gasket for your fuel sending unit is leaking.
There is a fair amount of fuel that will leak when changing the filter.
Depends on where the leak is.
Nahal Zin fuel leak happened in 2011.