The current date code system uses a letter and two-digit number to identify the month and year of manufacture. Letters A thru L represent the month (A for January, B for February, etc.) The two digits correspond to the year it was made – 14 for 2014.

When should I refill my Zippo?

Well, it varies with everyone and there is nothing specific about how many days will it last but if you want an average then, in our opinion a Zippo lighter can last up to 1 week. After that, you will have to refill it.