Hi there, i use lpg on my landrover, though i think the tank is a tad larger than what you are looking at, i fitted it myself and yes you can change between fuel and lpg, i have my fuel pump on a seperate switch though this is a simple system being a landrover! Hopefully u can see the size of the tank in the attched pic, its the green one by the way! [image]http://us.f2.yahoofs.com/users/426fd33ez2b8adfe9/abercrombie_and_fitch_guyuk/__sr_/37e2.jpg?pfLS9bCBEmQlTYp8[/image]