oil/grease for Minolta 50mm 1.7 ?

[KarelDH]

Hello,

I am looking for any good oil/grease to lubricate the main helicoid in a Minolta af 50mm 1.7

Its a plastic inner part on a metal outer part.
there can be no friction ( the oil i used before slowed down the lens).

The problem i have now ( no lube) that although its really quick and smooth, its also very noisy ( u can hear the gears rattling an its gives a small peed creep sound).

any advice ?

Ty