IMHO ZIPPO lighters are not very suitable for EDC due to the well known problems re leakage and evaporation.

I keep a number of ZIPPOS without fuel, and also some well sealed cans of lighter fuel, these are long term preps for a future in which matches and butane lighters may be in short supply, but not for EDC whilst times are normal.

For EDC I have more faith in butane lighters and waterproof matches.