ewanAs always, they recommend to use only Zippo (or Ronson) butane, but it will work with any brand.
Also, disobeying this recommendation might void your guarantee, even if I don't know exactly how they check this.
Please, refer to this article: http://www.zippo.com/customercare/article.aspx?id=1789
Please, refer to this article: http://www.zippo.com/customercare/article.aspx?id=1789