On TB sockets, other then a daily driven car, my feeling the main goal is corrosion prevention, I'm not convinced any wear would cause a problem in less then 100K? miles, and if it did, no real downside performance wise. That being said, maybe a light coat of synthetic grease, and FWIW, I don't use the TB boots anymore, driving on dirt roads though, with grease might be messy I suspect. On a similar line of thought nobody(?) greases the ball end of the TB adjuster screw. work

On some other greasable/lube points, I might lean towards the frequency as a better plan then over great concern about the type of grease. twocents

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.