FP-10 old vs. new?

[Revolver Armorer]

I have found out how to tell old formula from new Mil-Spec FP-10. The old formula is slightly cloudy. This can absolutely be confirmed with a test tube. You can see the cloudiness under a direct light while applying FP-10. The new Mil-Spec formula is clear and slightly amber. Anyway, the last three bottles that I purchased are all clear and slightly amber. If you don't have a test tube, look under a high powered light. Apply a heavy drop on the barrel hood and you will see the difference (if you have any older stuff around).