If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard ...

I’ve been reading about a device called Fuel Save Pro that plugs into my car’s OBD II port under the dashboard. It says I can save 15% to 35% on fuel costs by letting this device optimize my car’s ...

DEAR CAR TALK: I've been reading about a device called Fuel Save Pro that plugs into my car's OBD II port under the dashboard. It says I can save 15% to 35% on fuel costs by letting this device ...