I had always thought White Spirits was just petrol without the additives, often called lighter fluid; at least it worked in my choofer that way. But I'm aware that many of us speakers of English are divided by our common language because different localities have different names for the same stuffs.
I've found that most waterproof labels come away intact if you're careful but the hot water trick almost always catches the recalcitrants. For really ornery ones (rare, thankfully) I take them to work and use some things in the fume cupboard that you don't want to know about.
And be careful with Eucalypt and Tea Tree oils. While working in the tropics I stayed overnight in a camp that hadn't been used for a few months; my padding around hatched all the fleas in creation and their attacks left my ankles quite raw. Various helpful locals who were into alternative approaches to medicine offered such oils, Being something of a sceptic (yes, I know...) I tried the oils on different areas of one leg and left the other leg untreated as a control; the treated leg got rather more problematic than the control. So I went off to the local Bush Nurse who healed up both legs with some BFI. That's the topical antiseptic version.