I need to change my transmission fluid in my 2001 VW Jetta 1.8T 5 speed and want some opinions on what kind/brand of transmission fluid to get. I believe the weight is supposed to be 75W 90. Should the fluid be full synthetic? In the DIY I read suggestions for Redline, Motul, and Lubry Moly. However, the DIY is somewhat old and I am wondering if newer products have come out that are better.