I formerly rode with a KMC 610 chain and have since switched to a KMC 810 chain.

My chain gets noisy when I don't clean it.

About every two weeks I soak my chain in WD40, wash it with dishwashing detergent and hot water, lightly spray it again with WD40, thouroughly wipe it with paper towels, and finally reinstall it and lube it with ATB-II chain lubricant.

THEN I wipe it down some more and feed paper towels through the chainring, cog and chain to soak up more surplus lube.

This gives me a bike so quiet I can sneak up on deer.

Really.

On more than one morning I have ridden slowly through a herd of deer, and they don't even blink.
For some reason, a rider on a silent bike doesn't scare them.
They probably don't have file in their brain for "bicycle."

Anyway, totally silent.