I strongly advise AGAINST using petrol / gasoline in any TD5 fuel system.
Use kerosene or white spirit instead.
The fuel in a TD5 engine circulates from the tank, to the pump, to the filter, to the engine, and then back to the pump, round and round. The problem is that the fuel gets VERY HOT because of the way the injectors work. The fuel will probably get hotter than the boiling point of petrol, and that is when the trouble starts. Big gas bubbles of petrol vapour can form, which causes the injectors not to fill with fuel properly, and the power drops right off, and the engine may stop.
Been there ... done that - by accident. Petrol in diesel tank trick!
CharlesY