Hi all. Having gone through the usual gamut of sprays over the last few years that are commercially available for lubing your chain I started using gear oil 80-90 weight 12 months ago and I have to say it beats all other products I have used hands down. My chain is in much better condition after 12 months than I have experienced using commercial sprays and it doesn't seem to need lubing quite as frequently as before. Its even better at not flinging itself all over your wheel than most products I have used!!! saves you loads of dosh as a litre bottler lasts for ages so works out much cheaper:-)
I fill an old fashioned oil can with the stuff to apply it to the o rings while turning the wheel and once the whole chain has been covered wipe it down with a rag. Results have been great, no rust, no tight links, no fling, much easier to find in shops and garages and best of all more money in my pocket!!! Check out this guy who uses it as well https://youtu.be/JtZEguNybKs
I would advise applying it to the inside of the chain though.
I have even used this on gate hinges, outside padlocks, double glazed hinges. Much better than wd40!!! Hope this helps you.