That I am not sure of. The link is supposed to take you to my Fuelly page. All your supposed to do is paste the link in your sig, but does not work correctlyNot sure about in terms of posting it in your sig, but does it automatically update in your sig (or that link) everytime you fill up or mpg changes?
We have external image links turned off in the signature. The reason is that we can't control the size of images if we allow them (I think). I need to test it out but I don't want people inserting large files for signatures if we can help it.