Persistent decal adhesive

So I've taken off the side defender stripes and three out of four came off super cleanly. However one has left the most stickiest persistent goo ever. It's a nightmare. Used meths, white spirit, adhesive cleaner, degreaser, wd40, olive oil, steamer, hair dryer and nothing works!

Has anybody got any tips for getting this off because it's getting in to way of the paint restoration I'm carrying out.

Thanks

Petrol?

Got mine off with white spirit and meths - had to soak the cloth pretty well to get the stuff good and wet, but did come off

Tar and Glue remover ?

Paint thinners, get it on then wipe it all off reasonably soon, leaving it on the paint for too long will mark the paint - I have done this plenty of times and it works well.

petrol again

If it isnt clart loads of residue, try scratch-X from meguiars. Its an abrasive so should rid you of the clag.

I have used it when I took badges of cars (Dont ask - I tought it looked good at one point!!)

heat gun rather than a hairdryer,just done the same on mine

heat and IPA worked for me, and not the greene king kind...

Okay, I'll have to try some of your recommendations. I'll let you know how it goes.

Forgot the easiest, safest and cheapest one - cooking oil!! Gently dissolves the glue and doesn't marr the paint. Dab it on thick then leave for a few mins, then start working it in.