You really need a very hot solution containing a substance with a very low pH - such as tri sodium phosphate, or even caustic soda.....
G’day; CORRECTION! It has just been pointed out to me that I was
wrong with above reply: Liquids with low pH are ACIDS like
hydrochloric acid. Those with high pH are ALKALIS like caustic soda;
trisodium phosphate; ammonia etc - all of which convert oils and
greases into a variety of soap.
I apologise for that; I couldn’t have been quite compos mentis. I
had just cracked a couple of ribs as the result of a fall. Over m own
feet. The news is that I may live. – John Burgess;
@John_Burgess2 of Mapua Nelson NZ