Reviewed By Joe S (BROKEN ARROW, OK) Reviewed for a 2012 GMC Sierra —3/1/2015 4:44 PM
Purchase this device and never look back. As I conducted by research, it was mentioned that there were problems with draining of the battery and an annoying blue light. I haven't encountered either. Yes, there is a faint blue light under steering wheel, but really not a problem, for me at least. The device does what it specifies. No more V8...V4...V8 nonsense. V8 all the time, and as far as gas mileage reduction/increase, my observations are...there isn't any. Purchase this and never look back.