Review: Fuel mileage trackers for iPhone

Back when I learned to drive—no, it wasn’t in the Model T—one of the things my father instilled in me was the need to track my vehicle’s gas mileage. Such information would alert me to problems before they became major issues, or so I remember hearing.

For some reason, that particular lesson has stuck with me over the years, even as cars have evolved with systems that will find trouble spots long before they become obvious in a mileage book.

read it here www.macworld.com