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Good catch I was answering questions from my 7th grader and had a total brain fart corrected to state parallel not perpendicular.......
Wow I need some sleep.

I only oil for storage or the very occasional up keep (overly zealous cleaning).

Canola oil is fine, many stay away from petroleum products, mineral oil is on I have used.

If you are shaving...

Link for tutorial on building lather below.
As far as your after shave the Nivia is decent stuff, a little more time, a few more shaves adjusting your angle (when I am using disposable blade...