Depends on how old the adhesive is & how old/strong the paint is. I use isopropyl, denatured alcohol, WD-40, or mineral spirits. But denatured alcohol & mineral spirits are no longer sold here Cali. I conserve what I have left but I do have a lifetime supply of denatured.
Another method I use is heat up the adhesive residue, then I use a piece of tape with fairly strong adhesive, like gaffers tape or duct tape, to pull off the residue. I use heat to remove old or really sticky stickers/labels to begin with. Too late now but heat might have saved you the work you're left with now.
Not too long ago I started using Bestine to remove adhesive residue now that I found a local source. It works better than anything I have used in the past where even stuff like acetone & brake cleaner didn't work and nowhere near as harmful to the finish. Just last week I easily removed all the old residue from stick on wheel weights from the inside of my wheels. Didn't harm the paint at all.
If you do try Bestine, be sure to test it first as with any method. While it didn't damage the paint on my wheels at all, I'm not sure if it will dull a glossy paint finish or powdercoat. It can cause certain plastics to slightly haze, more on that below.
Bestine is basicaly n-Heptane. It's the solvent used in rubber cement. It evaporates really fast though, faster than acetone, & easily. Needs a really good air tight container. I tried putting some in luer lock bottles like I do with many other fluids, even with the needle capped it still slowly evaporated.
I really like the Bestine, will always keep it on hand now. Oh and n-Heptane is also the surface conditioner that comes with those glue kits for polypropylene & polyethylene. Common glues won't stick to those plastics. It allows you to use plain ol super glue/CA which is what those kits come with.
If the residue is really old & hard/no longer sticky, you might even be able to buff it off with polish.