In the manual that was written over a decade ago, they stated to use OEM fluid (they often say that about oil and oil filters, too, but we all know that's a bit much). We all know that VW doesn't manufacture fluid, so it's fair to ask if the information written in a 10 year old book is still accurate given the fact that fluid technology has changed/improved over the years.What does VW say to use?
I also can't help but think that many of the dealerships just badge engineer stuff and therefore charge a premium price because of the extra steps they have to take.