I installed PIVOT MEGA RAIZIN voltage stabilizer 2 weeks back. Connected the unit directly to the battery terminals, easy.
I have been using RON97 BHP before installation. Similar driving pattern and my usual routine route to and from work. I am still using RON97 BHP and my mileage has improved!. I am now clocking 11lit/100km when I usually clock about 11.7/100km. The last fill was 50lits for 460km. I also notice my HID now works better, last time, sometimes I need to switch off and on again cause one side sometimes don't light up. Now, all OK! Somehow I guess better stable voltage to our electronics, the car runs smoother..guess it helps...