This video from [Just Think] caught our attention for open-flame testing of 6 different commonly used liquid fuels: Jet-A, diesel, heating oil, kerosene, avgas (100LL), and gasoline (or petrol ...
AVGAS 100LL: Contains a lower amount of tetraethyl lead and is blue in color. The "LL" stands for "Low Lead." Jet fuel is used in aircraft with jet engines, turboprops, and turbine engines.