I use only P&G oil in Alps faders. It is PTFE based. Never any type of solvent. I hate that "lubricating solvent" stuff forever anyway.
A studio owner asked me to fix his stereo because "no matter how he sprayed it, the volume would still crackle". I found thick deposits of Cramolin Red (yes, it was that long ago) between the front and sub panels that were like butter in consistency!
Wrong product, wrong application. That happenes often now where there are shops with part-time techs. People take it upon themselves to schpritz whatever can looks the prettiest into something noisy.
In the last 7 years or so I have been standardizing to the Caig line of products, after having used Cramolin Red and Blue for 20 years, and ProGold for about 12. Their product line so far has not disappointed.
The problem with the "tried and true" solvents or lubricants is that they get discontinued because they harm the environment or are poisonous. I have a box stash of flux remover that has now lost it's propellant, so I just punch the cans and put it in a bottle. Dangerus to hyoomans my legg.
Mike