surely LPG is a hydrocarbon gas, and if it is used as an energy source will generate carbon dioxide (at least...).Hi goldfish66, thanks for your thoughts on gas conversions, you are correct in that my Carens is petrol powered, and the conversion cost best part of £2000 when I had it carried out, a few years ago now. My gas tank, 66litre, is positioned in my spare wheel well and normally I carry a couple of cans of instant tyre repair, just in case, though on long journeys I can take the spare in the back of the car.
My average milage is 11000 a year, which at currant prices would cost me on petrol about £1,980, whereas on gas its about £750.
However, perhaps the other considerations could be felt to be more important, my emmissions are basically zero, no harmfull anythings, which means no congestion charge payable, road fund licence falls by one or possibly two levels, hence cheaper to tax, plus power unit runs much cleaner & the exhaust cat becomes redundant. Great when its M.O.T. time.
Lots of plus factors, no downside that I'm aware of.
Same M.P.G. as petrol and increased performance, especiallly acceleration.
My first Kia, not my last...............