[RestoMike66]

The white lithium lube I used years ago on the window mechanism has hardened and not doing much in the way of lubrication. Is there a suggested better lube too use?

 

[22GT]

I would just renew the white lithium. Make sure the rollers turn freely.

 

[AllenHopp]

The white lithium lube I used years ago on the window mechanism has hardened and not doing much in the way of lubrication. Is there a suggested better lube too use?

An option I prefer is "Super Lube", a synthetic that isn't supposed to harden like Lithium Grease.
I also like "BoeShield T9" lubricant, it's used in Aerospace.
"Gibbs Brand" is another good one. I tend to stay away from Lithium & WD 40.
Like every thing tho, there are a lot of options out there and it often comes down to personal preference.
Naturally a good cleaning of whatever is in the tracks/brackets before is important.
Good Luck!

 

[Guidos65FastBack]

I was a Benz mechanic years ago. When we did window regulators guides. We used Sil glide stuff Is amazing.

 

[Woodchuck]

My vote is for Fluid Film "AR", which is the "thicker" version. Kellsport in Fall River Mass sells it by the case of 4 gallons. ID# is 8030-01-381-7311 . The less viscous Fluid Film "NAS" used as an undercoat works okay, too, and if you do your door cavities every other year or so the window regulator, slides and rollers and door latch'll get done too.