Hi, yes thats Mobil-1 (or any of the good quality synthetic car oils) from an auto shop we used the 5-50 and found it vastly better than any standard case lube (and I have part used containers of most of them
)
We used it in a plastic bag, just a few drops in the bag and roll your brass round till there is a super light coat everywhere then a quick brush inside the neck before putting it on the ram.
The only slight hassle is getting it off after sizing but a quick shake in petrol takes it off nicely.