hi , my Lpg conversion on 2010 Kluger costed $3500 minus $1250 goverment rabate. Out of pocket$2250. I have Stargas Vapour injection system installed, the same system as my commodore before. I have done on this system in my commodore over 200 000 klms without any major problems. My Kluger takes approx 14-15 Litres of gas per 100 klms Sydney/city driving. I have done approx 20 000 klms on LPG and my kluger, runs perfect. I can not feel any power loss. Donut tank installed where the spare tyre was. I do service my kluger in toyota service centres. Once every 20 000klms kluger goes to lpg mechanic for lpg filter change . Please note that some of the mechanics do not install lpg filters with new and modern lpg conversion. It is better to have one because of the injectors. Sometimes the LPG is dirty and effects the injectors. It cost $55 for the filter and the software upgrade and all the checkup. I am LPG Lover , would do it again. Kluger is my third car on LPG. I have filled up my kluger today 320Klms costed me $27. That is cheap !!!!!!!!!