Are LPG (Liquefied Petroleum Gas) and CNG (Compressed Natural Gas) the same fuel?
LPG and CNG are quite different fuels, LNG is a high-pressure gaseous fuel that always stays in gaseous form. LPG is a low-pressure fuel which is stored as a liquid. Above a certain temperature LPG becomes a vapor fuel which the engine then runs on.CNG is compressed to a high pressure while LPG is stored at a much lower pressure.