T6 which is the synthetic was $20 for me and should be near that price at WalMarts... I got mine at Advanced Auto. This was for the gallon jug.

Over time, and not in the first couple or few oil changes, you should notice improved consumption. The detergents should clean the drain holes over time. Most, if not all trial reports that were neutral were because they expected a miracle in the first change. I know to give it time. It makes sense, the lubrication is there, just now with more detergents and that can only help our feeding issues. Or should....

My increased oil consumption is due to my commute. I'm driving 20miles one way a day and 12miles of it is a 75mph zone. From my reads, increased speed tends to burn more oil.