Garry,
I have a case of Agip 5W-40 "Synthetic PC" that I intend to do a VOA on as soon as my kit comes from Blackstone. This will give us an initial impression (e.g purity, additive package, TBN, viscosity). It is a Mercedes 229.3 oil which puts it in very good company. I will also do a UOA, but that won't be for a while yet. So while I don't have a definitive answer for you, we will at least have an impression soon. My guess is not many on this board have experience with Agip oils...maybe someone will pop up and prove me dead wrong on that count.