Igesi ye-tyroleid yepetroli (i-LPG) ligama elichaza iqela leegesi ze-hydrocarbon ezivela kwioyile ecekeceke kwaye / okanye irhasi yendalo. I-LPG iveliswa yirhasi yendalo emalunga ne-55% kunye neoyile etyhefu malunga ne-45%.