Looking at VOA and noticed ACD D1G3 / Honda Syn / MC 0W-20 seem to have an extremely similar additive package. Is AC Delco still using Exxon-Mobil or did they switch to Conoco-Phillips?
AC Delco engine oil is as far to seen is some cheap Mobil stuff as possibly Mobil full synthetic rebottled, its nothing outstanding, though gets the job done, not the same as Mobil 1 products. There are better oils out on the market for slightly more or even less cost.
Having all your oil changes done at the dealer? Otherwise, why AC Delco? What major, national chain stores around these Midwest parts even sell it?
You can buy what's inside current AC Delco 5w30 oils by vising the kendallmotoroils.com website and get good pricing and free shipping.