Find it really strange. In winter here the weather is around 18-24 degrees celsius and the car has always been running at a consistant 15-17 psi of boost, however in temperatures of around 33 the psi drops to around 10-13. Is this normal? I mean I know it changes due to the weather conditions but with such a short change of air temperature should it vary by this much?

 

Hmmm..I hope I'm reading the celsius correctly. (American Farenheit folk here.) I see boost PSI *increases* in warmer temperatures and *decreases* in colder temps.

 

What is the type of fuel you are using buddy?

 

I always use 98 0ctane. In dubai we have special(96) and super(98).

 

once i used special and the boost didn't go over 0.9 PSI even with sport mode.
so no more special always go with super.