u/Delicious-Agent-7324

Hey everyone, I recently got a Q60 and i’m doing some maintenance on the car, I noticed there are many telling others to move to 5W-30 and I checked the manual and its saying as long the oil has the MB-229.5 certification you can use 5W-30 or 5W-40. I was wondering would it be a smart move to use 5W-40 if it has the certification?