A Zippo lighter is not bad you just need gasoline and a flint. In a pinch, you could also use methylated spirits or mental drinks they burn like gasoline. From my own experience I know that these lighters are not very dense. Gasoline evaporates very easily, especially if you are carrying the lighter in your pocket where it's warm. So it can happen that the light suddenly all the lighter is on fire and you burn your fingers. There are hardly any Lighters Zippo is the exception. Earlier, the lighters had ne other type which no longer exists today, the fuel tank was screwed and also the channel for the flint was bolted and the wick was safely housed under a metal cap. This construction was much denser than that of Zippo. When Zippo the parts are loosely fitted into one another and thus not very dense. One should also frequently clean the abrasion of the flint as this function is impaired. Zippo is a cult lighter and has the advantage that it works well in windy conditions.