Not sure why, but the signature badges aren't showing the custom pic I uploaded for US MPG, they do however reflect it for UK MPG, L/100km, and km/l. I've tried two different browsers thinking it was a cached image, but to no avail- still showing the default "smart car". Any ideas?
Sorry about the delay. We cache those signatures because they're requested a lot. If we had to create them on every request our server would grind to a halt. So yeah, once in a while it might take some time for a signature to update.
The best way to get a signature to update right away is to add a new fuel-up—even if you're just adding a test fuel-up it should update the signature fairly quickly.