Originally Posted by
zackzhrd
I recommend fully degreasing the chain, then reapply wet chain lube, rather than apply an all-in-one solution to "clean, lube, and protect" like T-9. I use WPL (Whistler Performance Lubricants) bio-solvent degreaser, and then their wet chain lube. It's more work but worth it in the end for your drivetrain.
I did look up WPL after your suggestion. I noticed it claims to be bio-degradable. Do you happen to know why they can make that claim?