I have seen plenty of very nice UOA on the Valvoline AC but for some reason they never get any attention. I will agree that the AC's additive package is a little thin in comparisson to some other less expensive brands, but that does not change the fact that their are some nice UOA on Valvoline AC in the 3-5k oci range. I prefer something else due to Ac's price. But I will give Ashland credit, they love to give away their Maxlife, and I love taking it off their hands.