content: The scanguage has been a very satisfying purchase, super easy to install (just stick it in place with velcro and plug it in) and easy to use, with all kinds of information about the functions of the engine. I'm using it to optimize my driving for fuel economy, and it shows me instantaneous fuel use as well as mileage by the trip, by the day, or by the tank. You can also use it for miles-to-empty and for engine diagnostics.Great product.