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Apparently there are companies out there who engineer otherwise inert particles, or mixes of particles, that fluoresce under specific wavelengths, for example M

Apparently there are companies out there who engineer otherwise inert particles, or mixes of particles, that fluoresce under specific wavelengths, for example Mobil might add the particles to their premium Mobile 1 synthetic motor oil product to find counterfeit products in certain markets. By opening a bottle of oil purchased off the shelf they can hit it with ~620nm && ~580nm and if it does not respond correctly, it is relatively easy to demonstrate that it is counterfeit and quickly get it removed from shelves. This can also be applied to crude oil and quietly tested at the refinery to verify it hasn't been diluted with similar product.

mrexroad 1y ago
> Mobil might add the particles to their premium Mobile 1 synthetic motor oil product to find counterfeit products in certain markets. By opening a bottle of oil purchased off the shelf they can hit it with ~620nm && ~580nm and if it does not respond correctly Interesting. I haven’t heard they had additives in the oil to detect counterfeits. I assume the fluorescing behaves differently at 620nm and 580nm? I recall they had issues with counterfeits in some countries and have made attempts to combat it with packaging (e.g. specific letters on label fluorescing under UV, and currently their Scantrust app [0] validation tool). I’d be interested to know how it behaves, as having the oil itself fluoresce when not labeled as such might be annoying when using UV dyes for monitoring leaks. For example, I like to run LiquiMoly’s molygen every few changes to monitor changes in seeping on one of my older cars, but it is only helpful when i run the oil w/ dye after non-dyed oil. [0] https://www.mobil.com/en/sap/our-products/mobil-anti-counterfeit https://www.mobil.com/en/sap/our-products/mobil-anti-counter...
analog31 1y ago
From what I've read, there are also fluorescent compounds in the other fluids used in cars. A mechanic can shine a UV light under your hood and spot the leaks.
rolph 1y ago
not only oil, chemical reagents on watch list , explosives, probably reloading powder. fertilizer components. not for counterfiet detection but for attribution in case of abuse.

mrexroad 1y ago

> Mobil might add the particles to their premium Mobile 1 synthetic motor oil product to find counterfeit products in certain markets. By opening a bottle of oil purchased off the shelf they can hit it with ~620nm && ~580nm and if it does not respond correctly Interesting. I haven’t heard they had additives in the oil to detect counterfeits. I assume the fluorescing behaves differently at 620nm and 580nm? I recall they had issues with counterfeits in some countries and have made attempts to combat it with packaging (e.g. specific letters on label fluorescing under UV, and currently their Scantrust app [0] validation tool). I’d be interested to know how it behaves, as having the oil itself fluoresce when not labeled as such might be annoying when using UV dyes for monitoring leaks. For example, I like to run LiquiMoly’s molygen every few changes to monitor changes in seeping on one of my older cars, but it is only helpful when i run the oil w/ dye after non-dyed oil. [0] https://www.mobil.com/en/sap/our-products/mobil-anti-counterfeit https://www.mobil.com/en/sap/our-products/mobil-anti-counter...

analog31 1y ago

From what I've read, there are also fluorescent compounds in the other fluids used in cars. A mechanic can shine a UV light under your hood and spot the leaks.

rolph 1y ago

not only oil, chemical reagents on watch list , explosives, probably reloading powder. fertilizer components. not for counterfiet detection but for attribution in case of abuse.