donh wrote:

I want to lubricate the nylon rotors that my mower blades turn in. What
is the best lubricant to use? I have heard that oil will deteriorate the
nylon and that silicone is too weak. They are really getting noisy and need
something. Thanks

Below is a guide to chemical compatibility for many materials:

www.coleparmer.com/techinfo/chemcomp.asp

Nylon is compatibile with almost all oils.