all telebrands and stuff are fake. there is no such thing as fuel saver. i saw that ad in Lahore on tv. just think if that device ever existed do you think big automobile part manufecturers will sit idle? Boch don't make it, Denso don't make it then who the hell telebrands are to make and sell such a thing. they are fake for sure just like their other products "sauna belt", "growtall", and "nonsticking pan".