Long time user of Synthetic 10w30 motor oil, never had a lubrication issue with it.
Working with Ballistol now as a CLP. Jury is still out on it and the wife will not let it in the house. Ballistol has an overpowering smell of aniseed but seems to work well. So far I like it better than Breakfree CLP but not as much as Weapon Shield.
CZ 75 P-01 . CZ-75B . CZ 912 . CZ 920 . Glock 26 Gen 3 . Kimber Pro Crimson Carry . XDm 45 3.8 Compact . Ruger 22/45 MKIII