What is the difference between diesel and gasoline?

[VonColton]

Differences between diesel and gasoline: 1. Different volatility: Diesel is difficult to volatilize; gasoline has strong volatility. 2. Different reactions with air: The mixture of diesel and air is uneven, resulting in local hypoxia or local oxygen enrichment; gasoline easily mixes with air and the mixture is not easily separated. 3. Chemical differences: Diesel contains more carbon atoms, ranging from 12 to 15; gasoline contains fewer carbon atoms, ranging from 8 to 10. 4. Different combustion methods: Due to its high carbon content, diesel requires more air and is not easily ignited by spark plugs, so a compression ratio of 15 to 18 times is needed to compress the diesel mixture for combustion; gasoline molecules are smaller, more active, and have a lower ignition point. In gasoline engines, mixing with an ideal proportion of air and compressing to around 10 before ignition by the spark plug is the ideal state.