Yes, just the other night I had a nice discussion with a friend who had just converted to LPG/Autogas ... he strongly claims that some stations (brands) of LPG give him much more mileage. Like, for every P500 pesos, one brand can bring him 10kms more than the other brand. And it was *not necessarily* the higher priced Autogas that gave him the better performance.
regarding price increase and roll backs ... I am worried and half expecting that one day, the price of LPG will be the same as Gasoline. Not very long ago, Diesel was almost half the price of Gasoline... now, it is just a shade lower. hayyy...