is oiling a candle more effective than n

This one isn't really a card question — it's a practical one, so let me just answer it. (Happy to pull a card afterward if you want the reading side of it.)

It depends on what you're oiling:

A wax candle (jar or pillar), oiled before lighting — usually worse, not better.

• Oil has no business under a wick in wax. It doesn't burn as fuel, so it just sits there, wicks up, and the flame goes tall, lazy and smoky, or sputters.
• Wick gets coated, soot builds on the walls and the flame sensor/hood.
• Pooled oil near a flame is a real burn and fire risk. Never pour oil into a burning jar candle.

An oil lamp (hurricane lamp, diya, tilly lamp) — yes, meaningful.

• Here the oil *is* the fuel. A fresh fill, a clean fuel, and a properly trimmed wick are the three things that decide whether it burns bright and even.
• Trim the wick before topping up, and keep it at the height your lamp's guide says. A long charred wick is the usual cause of the smoky, sooty burn people blame on the oil.
• Don't overfill; leave the expansion space.

A scented candle you want more throw from — edit the wax, not the burner.
Fragrance load has to be mixed in when the wax is made. Spraying or dripping fragrance oil on top of a lit candle is the smoky, dangerous version of the same mistake.

So: oiling a wax candle before you light it does nothing useful. If it's a lamp, the oil and the wick are both doing real work — top it up and trim.

One thing worth telling me: which of the two you actually have, and what problem you're trying to fix (smoke? smell too weak? wick won't stay lit?). The fix differs.