Question

Why can't LPG gas be used in automobiles ?

Answer 1

1.They need refueling more frequently because of lower energy density compared to gasoline or diesel.
2.There are few places to do fueling.
3.So only fleet operators (UPS, Utility companies) tend to buy vehicles that use them, and they put refueling systems in their yards, often not open to the public.
4.So there aren’t many places for the public to fuel them

actualy lpg can use in automobiles.Autogas
​​​​​​ is the common name for liquefied petroleum gas (LPG) when it is used as a fuel in internal combustion engines in vehicles as well as in stationary applications such as generators. It is a mixture of propane and butane.But it is not economicaly applicable,due to the above given reasons.