How deep it should be placed?

@iDivision (1414)
Latvia
November 4, 2010 6:10am CST
Today I drove into petrol station in city. I opened my car fuel tank cap and put fuel hose into it. Diesel began to flow into the tank. I released hose handle and waited until when my tank will be full it automatically stops the fuel pump. But this time it stopped faster than usually. I tried to puor more fuel into tamnk manualy and succeed with some 15litres more. So now i am thinking how deep i must put fuel hose into my fuel tank opening to get as much fuel loaded as it is possible and so that fuel dont start to fizz so fast.
No responses