There are two, and only two, types of computers that are good for cars:

1. GPS Navigation
2. Something that tells you information about your car you can actually, y’know… use.

This one falls under #2.

The ScanGauge II is a super-cool little device that connects to an OBD-II connector already found under the dashboard of 1996 and newer cars.

If you want to know what gas mileage you’re actually getting, this will tell you.

Want to reset the “check engine” light? This can do it.

It can also do a bunch of other stuff too.

Easy to use? Absolutely.

Are any tools needed to install it? That’s the best part; NO. Even if you know absolutely nothing about cars, if you can plug something into something else, anyone can do this.

Where to get one? Right here. Note: There are also mounting kits separately available where you can clip this nifty little thing directly under your rear view mirror. It doesn’t get any easier.