Is it safe to assume any DCT fluid of appropriate viscosity and GL-4 rating can be used in a manual transmission? There are a few like Pentosin FFL-3, Motul Multi DCTF, Redline DCTF, etc. that cross reference with MT specs like BMW MTF-LT-5. However, there are a few that do not list GL-4 or the MT specs such as Motul High Torque DCTF or Pentosin FFL-Racing, but they do list other DCT fluids in the datasheet.