The manual says chain oil for a good reason, and with that in mind I buy a winter formula oil that actually works it's way in because regular oil is like pouring molasses in January. Mine is made in Canada where they've figured out the best way of dealing with cold and snow and probably don't know as much about all the super good motorcycle chain lubes available now.
Just be sure what you use is the kind that soaks into the chain rollers and no matter what you use it's best to put on after you've used it and warmed it up good. I always do after use running it in then don't forget to put a piece of cardboard underneath as it will end up on the garage or shed floor making a mess you won't want to track all over the place or especially into the house.
Al