I was in the local DIY place yesterday. There was whole rage of spray-can lubricants. 3-in-1 oil had about 6 types. Normal, Professional, silicon, some with PTFE, and many others. WD 40 was there. Most on the can say the same thing and the same applications. I don't know what lubricant is the best of what applications. I am sure most are confused.
I have read on these forums that WD40 is not a lubricant and squeaky doors end up squeaky a month or so later. So given all these oil lubricants, what is it good for? I was told it seals electrics, but it is not contact cleaner.
Confused.