Salam Everyone!
This is going to be my first ever thread on pakwheels I always used to get knowledge from the experienced writers who always share their knowledge to help others, Now I m really excited to write mine but this is not going to help anyone gains knowledge but will surely resolve arising questions in my mind so lets get started.
I owned a Hilux Vigo 3.0 D4D turbo thai variant, I m using it from passed two years there were no issues It was performing well and I was changing oils on time no other extra repairing or malfunction cost but I do felt sometimes a loud diesel engine noise specially in winters, and there was an okay throttle response as well let me share its history I m the second owner the vehicle was bought in pakistan in 2014 and the first owner kept in family use no guards or protocol wala dala, he droved like 20k in 4-5 years and then I bought it from him and again its in family use purpose vehicle, recently I went to swat and on my return the vehicle behaviour is changed a lot when i say a lot theres hell of a difference,
The engine noise is like 50 percent less noisy and instead of the typical diesel sound its like roaring now 
The suspensions are more softer then before, cabin noise reduced (I mean door or other plastic parts cracking sound)
The fuel average increased before it was giving like max 6 in city hard or light foot doesn't bother now its giving even 8 if drove morethan 10kms in one trip hard foot even not affecting the fuel economy!
I pushed it 160km/h to 180km/h on returning from swat, I felt the performance on my way to home.
What just happened to it isn't sounds crazy anyone have any scientific reason or fact to share as my story sounds like not normal?
