This $11 car gadget can save you money

Boing BoingThis $11 car gadget can save you moneyBoing BoingIt's a blue plastic thumb-sized gadget that plugs into your car's OBDII port (look for a white socket on under the dashboard on the driver's side). It is meant for Android phones (if you have an iPhone, try a WiFi version for $17). I had no trouble ...