Both of these seem to be boutique additives that actually do what they claim; reduce friction. Opinions? Would you run them?
https://www.youtube.com/watch?v=gIEZ58wnUyM
https://www.youtube.com/watch?v=m8ZKMCfAue4
https://www.youtube.com/watch?v=gIEZ58wnUyM
https://www.youtube.com/watch?v=m8ZKMCfAue4