I never said transfer oil, or automatic transmission oil or VAQ diff oil was lifetime.
I just don’t see the point of changing the tranny oil in the M6F box but each to their own.
I had a Civic Type-R with lifetime gearbox fluid, it was crunchy when cold and way too notchy. Changed the oil (car was on 70k) and it was like a new gearbox.
I had a Subaru Impreza STI, same again, lifetime fluid, car was on 90k and once the oil was changed shifting gears was a million miles better.
I don't want my golf going that way so i'll change the oil!