tubi

For vinyl and plastic trim pieces rubbing against each other. I'm looking for something that can go into the really tight gaps but won't leave a greasy stain behind.

PracTTical

felt.

RKA

I bought a can of HHS2000 lubricant (made by Wurth). It's designed to penetrate like a lightweight oil, but it dries and hardens and lubricates moving parts really well. I've seen it used on 9 year old creaking Audi doors that haven't been lubricated...restored them to like new condition without the annoyance of a big glop of grease in the hinges.

Only issue is, I believe it will leave some residue like you might expect with an oil applied to the surface. Haven't tried it on interior parts yet. It's worth having it around as a shop item for other purposes if you're so inclinded.

tubi

Too thick for paper thin gap.

RaveGreen

DuPont's Krytox maybe?

alms_TT_ny

talcum powder or graphite