When I went to Armenia this fall, all of the taxis use LPG and the LPG stations look like a Las Vegas night club with all the lights. Some older cars use gasoline or petrol to start in winter and then switch to LPG upon starting but I never saw any. LPG was half the price . I am surprised it hasn't caught on over here in Toronto.
It requires modifying the vehicles, and losing considerable boot space fitting a LPG tank, as well as keeping your petrol tank. There's been a small amount of conversions done in the UK, but it never took off, and filling stations are fairly rare - so you need to keep the petrol option.
An old friend of mine (Terry) used to work at a place doing the conversions at one time.
As kids we used to knock on various farms, often playing with old motorbikes and cars - and the one I spent most time at had two tractors, one was a 'relatively' new one which ran on diesel, the other was an OLD one which ran on petrol/TVO
(Tractor
Vapourising
Oil) - TVO was basically low quality paraffin. The farmer had two large tanks on the farm, one for Diesel and one for TVO. You started the tractor on Petrol, then when it was warm you switched it to TVO - you couldn't start from cold on TVO.
Now we were poor skint kids, and struggled buying petrol, so in the old motorbikes we often used to mix a bit of TVO in to make it go further. Then once we acquired a Ford Popular (sit up and beg) Pickup we added two motorbike tanks in the back, filled one with Petrol (which we had to go out and buy), and one with TVO (which we took from the unlocked TVO tank
). Then, just like the tractor, we started on petrol then switched to TVO once it was warm.