fuel efficency

How goes the debate? Whether one gives more milage over the other is debatable & a lot of factors come into play from vehicle to vehicle, driving conditions, fuel prices, etc. To broaden the debate further, a more useful outlook would be overall costs versus fuel efficiency, or milage, if you want an easily measured outcome. One of the bigger ongoing costs associated with LPG conversions is the maintenance. Cars designed for petrol were simply not properly designed to take LPG unless they are factory gas cars (cars actually designed specifically for LPG). Pretty much all places that do LPG conversions here are absolute butchers. In the early years, they had no idea what they were doing & ran into all sorts of problems. High profits for a cut-&-shut job. I work in the motor trade & see all sorts of problems with the components on all types of fuelled vehicles. Gas conversion cars have all sorts of problems, for many of which the driver is to blame! LPG converts if they are dual fuel, must always be started on petrol & run for about ten minutes before switching over to gas. If the driver fails to do this, the car develops all sorts of problems. All up, it costs much more to convert & keep an LPG conversion car on the road long term than if you just left the thing run on petrol like it was supposed to be in the first place. Interesting to note that the boiling point is in the same order. Isn't diesel cheaper than petrol in India?