Got some vintage 32/33 cp headlight bulbs on T-bay that needed cleaning. V8 juice works great. Left them in there for an hour and the wiped them off with a paper towel. Then a quick wash with alcohol. They're like new now.
What did the V8 taste like afterwards?
A little "sharp". (as in broken glass)
Good on you Mark! Thank you for watching those bulbs!
I once left a number 4 Vice Grip in a little dish of Coca-Cola on the bench for a whole week.
That little bugger now holds a blade on an old hack saw with it's eaten-off lower jaw.
Some folks use ketchup to polish their silver light reflectors .