Igniting gasoline

In an experiment, researchers tried 2000 times to ignite gasoline with a lit cigarette, but failed 100% of the time. Liquid gas can't be ignited by a lit cigarette but the gas fumes from the pump can ignite from a cigarette, but only if that cigarette is burning at 450°C which they don't unless you puff on them. Unpuffed cigarette burns at 400°C, while puffed cigarette burns at 900°C.