Safest cleaner (best degreaser) for first cleaning out of the box?

[Maddmax]

Has anyone ever used Lucas gun oil? Made by the same Lucas company the makes automotive lubes.

Also, someone posted never use WD40 on guns. TRUE!!!!! WD40 gums up, I use it on hedge trimmers only.

Works great (WD),for removing gum residue of stickers too. NO go on any weapons and it's hard to get WD gunk off.