You made me laugh with the manly scent part.
As a kid, I thought washing my hands with "swarfega" is what grown ups just did. I truly do have very happy memories of the smell. And clean hot machine oil and electronics has a fine scent all of its own.
I used to use it as a carburettor aide for rarely used lawnmowers to kick start them into life but this is probably bad for the engine. There are real products for this.
Penetrative oil for mildly rusted on screws and bolts.
And.. a really bad chain lube, or hinge de-squeeler. Basically these things deserve proper lube molybdenum/disulphide stuff. You're depending on the graphite (I think) in wd40 to do the job before the solvent strips all the real lube out.