Does this RAVENOL VSE 0w20 VW Blue Oil have organic tungsten/wolfram? Specifically, "amines, bis (C11-14-branched and linear alkyl), tungstates" CAS-No.: 1159919-46-6. How do VSE, EHS, DFE, EFS, and EcoSynth ECS in 0w20 grade compare (these are the only 0w20 grades available for sale)? I just...