Hi i am going to change the gear box oil on my mgf next weekend,i am going to attempt to do it from under the car.I have made a gadget from an old thinners bottle,length of hose,cycle pump,and two old cycle valves.I have tried it with water & it works fine with no effort at all, it pumps to well over a meter high.So it should be fine to reach the filler hole,i know it will be different with the oil & i may have to change the tube to a slightly larger diameter.I am going to try to put some photos on here to show how it looks made up.This is my first time doing this.It would be great to hear what others think, & weather it will work.I will let you know next week when i have tried it out.