Hi usuf_x,
I bought the cheaper one and it's works fine, it think it was about £35 too. :D, I had mine installed by a pro when i got my LPG ssytem serviced so he priced it in.
Tip: find out who installed it and try to ask the last owner when it was last serviced.. Because it is highly recommended that you have it serviced at least once a year just to make sure everything is working fine. All they do has far has i am aware is they flush the tank and pipes then reset any software, valves, pumps etc.. and check for leaks. mine was never serviced since been installed in 2001 :duh: so i was keen to get mine done and it did make a diff..
I bought a re-fill Flashlube off ebay too for about £12 and so far it's only gone through half in about 6months.
Good luck, keep us posted.
dibslpg
Dibs Thanks for the advice, well mine was service by the last owner only a few month before I brought the car and was fully checked even the omissions and had only required I part replaced(some electronic gadget) I have a record of its history and yes from when it was installed by the original owner I think he never bothered afterwards where as the previous owner did so was very happy that its all been done for me.
I have a metal plate/tag just under the bonnet and it telling me my next major service (dunno what that means) is in 2011 and was serviced by calor gas.