The 5w40 is fine. Tuned doesn't really make a difference. However, these cars do generate a lot of heat. I am probably the outlier here, but I run synthetic 10w30 or 10w40. It's better for hot temps. 150k on a K04 car, the engine has no complaints .
Your car also goes the longest before carbon cleaning as well so, no argument here :thumbsup:. 10w30 or 10w40 aren't VW "whatever" Spec tho eh?
Lots of opinions on what oil. My take is if you change your oil / filter often enough & use any quality oil that meets the spec you will be OK.
+1 Agree wid this somewhat, I change oil on schedule with 5W30 or 5W40 Castrol oil from Costco. I don't give a rats ass if it says
VW "whatever" Spec on the label, that spec is for the
detergent additive package they add, the base oil is the same, so the key is to change your oil often enough. The
detergent additive package suspend the dirt in the oil longer and empowers you the owner to supposedly drive your car on the same dirty oil until the VW/Audi oil management program tells you to change it, while that grit and sh!t in the oil grinds the crap out of the metal surfaces so they can sell you a new car coz it goes long miles between oil changes.
Think about it.