Removing adhesive from brake light lenses

[Escort3500]

Evening all

I'd appreciate any advice for removing adhesive residue from a pair of rear side/brake light lenses (plastic) for a Mk 2 Zephyr/Zodiac.

They're NOS and had masking tape on them containing the part no. I've managed to get the masking tape off but the adhesive residue won't budge and scraping it with my nails is likely to scratch the lens. Soaking the lenses in warm soapy water hasn't softened it either.

Any ideas please?

(Mods - please relocate if posted in the wrong section).

[Escort3500]

Thanks for the suggestions guys. I'll let you know how I get on

[Escort3500]

williamp said:

Petrol. A very good solvent. Soak a cloth and lay over the lenses.

Wouldn't that damage the plastic?

[Escort3500]

Quick update. WD-40 did the trick so all good; thanks for the advice chaps.