Originally Posted by
trailangel
I bought some Chain-L in So. Cal. It has the distinctive oder of gear oil.
I could be wrong, but IIRC what you're smelling is a sulfur additive which is supposed to improve lubrication under high pressure or something like that. Park Cutting Oil also smells a little like that, BTW. It doesn't mean they're all the same stuff though (though I wouldn't be surprised if the cutting oil fared well as a chain lube).