Welcome to Gassavers! Post a pic or two in the garage please ? Most definitely set up a gas log ,it's a learning tool for you and other Focus owners . I had a '00 SE SPI myself - thrifty ride !
At the top of the page is a tab "Garage" . From there you should be able to enter data from the 'gas savers garage' tab . (at least I think thats correct lol someone will correct me if I'm wrong, please ?)
Now you'll want to add "27" as your EPA combined mpg . After that go to your garage > copy text in box at the bottom . Go to user cp>edit sig > paste info >save . Viola' Cool thing in sig !!