I have used the magnetic gizmo on three cars now and have found it work (probably why manufacturers don't fit it, keeps the petrol income up for the Government). I get 3-4 mpg difference on petrol. It has paid for itself over and over.
I have a petrol; IS SE-L 250 and would like to know where the fuel pipe entrant the engine spark is closest, please help :hocus-pokus: