1

Why does antifreeze have that fluorescent green glow - as if it were some alien chemical in a science fiction film?

Is the glow caused by something added to antifreeze or is it inherent? All antifreezes seem to glow although the shades are different.

  • I think it used to come that way so the coolant would be recognized as such. You'll find today antifreeze comes in about a dozen different colors. Green is just one of them. – Pᴀᴜʟsᴛᴇʀ2 Sep 10 '18 at 0:03
2

"Disodium fluorescein dyes are added to antifreeze to help trace the source of leaks, and as an identifier since some different colored formulations are incompatible"

Source

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.