A recent video with Gale Banks and some "scientists" from Amsoil surfaced on you tube......In this video thay went over in great detail about the different types of oils and the like.........and in the video, the "scientist" CLEARLY states that Amsoil uses Group 3 oils in their products as the base oil, and elaborates that group 3 are "great".......In the same breath, he states that " we did not create the standard or definition of a synthetic oil"...........
which is really saying........." we market our stuff as 100% synthetic, but it is not as our base is mineral oil, good mineral oil, but mineral oil nonetheless."
start watching at about 8:30 seconds on through to validate the above statement.
I will add that at no point does this person say they use PAO in their products..............which i would think would be a selling point.