As I recommended, it’s the most effective I’ve ever used.Look above a dam great picture of a can of release oil
I think I have about 60 years. Releasing agents are much like religions - or maybe medicines....and placebos! All a matter of personal belief.I have 54 years experience with seized nuts , bolts etc and have tried most of the penetrating oils around , I for one don’t need any data to personally know what works!