i am currently using Valvoline 5w-30.
the climate in my region is hot all year round around triple digits in summer.
would 0w-40 be recommended? the manual says nothing about 0w-40 just to use 0w-30 or 5w-30 or 5w40 if the 0-30 is not available.

5w-40 is not available in any retail stores near by so i am thinking about sticking to my old 5w-30 or switching to 0w-40

 

Here is the Audi approved oil list ...
M1 0-W40 is good as gold ...

http://www.audiusa.com/etc/medialib/....0023.File.pdf