Bro, u mean 20km more mileage of rm50 petrol or rm50 petrol goes up to 20km only??

Bro, i want to ask whether this product helps in solving my car's problem or not.

My car is kelisa 1.0 manual
-when the engine is start and idling, it seems the rpm not stable, sometimes normal sometimes weak and cause my car's dashboard slightly shaky..
-when the aircon is on and at the same time i use my power window or hit the break or etc that uses electric, my aircon obviously become weaker and headlight dimmer. Once release the break or stop pressing the power window control, only it will back to normal..

If ur product can helps in problems stated above, then i will COD with u asap.

Just bought the product from IceCube, here's my feedback:-

Boost Mileage (Im not sure i didnt care so much, i oweys got free petrol from my brother when i go his house every weekends )
Boost pick up (Yes, no more shaky when picking up my car at 1st gear and able to pick up after a bump smoothly at 2nd gear)
Boost acceleration (Yes, can slightly feel its different than before)
Boost gear change effectiveness (Hmm.. Cant really feel it)
Boost lighting in meter and headlamp (Will still get dim when i press my power windows control and kicking break, but not so dim like before)
Boost air cond cooling (YES!! Definitely! Obviously cooler than before)
Boost battery life span (Hard to measure lol this one )

Add-on : This seller is a very friendly person, taught me a lot of skills to maintain my car for better condition/performance while installing the stuffs for me. And he's a very patient seller, willing to wait me for 25mins without any -ness.

Conclusion : This product is worth for money, highly recommended to those driver who felt their car getting weaker after few years driving it.