Hi guys Thanks for the reply sinan. It makes alot of sense. I got my information here: http://lpgautogas.com.au/index.cfm?action=...=109&Type=R "Mr Coventry said the system produced a five per cent power improvement over conventional air valve and venturi LPG systems and a 50 per cent reduction in operating costs compared with petrol." I'm not sure if I read the statement wrong, I had to admit I'm a newbie when it comes to cars. Jonbays, I'm only curious with LPG because my mate told me to look into it, which I'm doing now, since I'm going to buy a new car for my business. As I explain previously, I do travel alot and require alot of space. Most of the information I have found dates back in 2000 and I wasn't sure if technology has changed within 7 years. The conversion cost is $4400 and the govt will rebate $1000 since it's factory fitted. I do not know how much LPG I would be using, though currently I'm spending over $100/week so I guess over $5200/year on petrol. I understand the govt will add taxes to gas that's in 2015 from memory, why not take advantage of it now? Petrol has taxes put on it, that doesn't stop people using it. I prefer not to get holden or ford, as I have set my heart on the toyota Aurion. I mean, if LPG is getting alot attention because it's so great. It would be silly of me not to look into it, wouldn't it? Andrew