But liquid fuels don't combust till they are vaporized and mixed with air. Unburned HC and NOx react in the atmosphere to form photo-chemical smog. Smog is highly oxidizing in the environment and is the prime cause of eye and throat irritation, bad odor, plant damage, and decreased visibility. Oxides of Nitrogen are also toxic. CO impair blood capability to carry oxygen to the brain, resulting in slower reaction times and impaired judgement.
Fuel mainly consists of hydrocarbons.
Groupings of hydrocarbons, when flowing through a magnetic field, change their orientations of magnetization in a direction opposite to that of the magnetic field. The molecules of hydrocarbon change their configuration. At the same time intermolecular force is considerably reduced or depressed. These mechanisms are believed to help to disperse oil particles and to become finely divided. In addition, hydrogen ions in fuel and oxygen ions in air or steam are magnetized to form magnetic domains which are believed to assist in atomizing fuel into finer particles.