Experiment either with other viscosities of the same brand or go to any other brand of your choice that meets the manufacturer specs, then see if the consumption is more to your liking.
To see what the oil itself is doing, get a used oil analysis after running your choice at least 3K miles.
I do not buy oil from direct marketing, mutlitier marketing, whatever marketing firms regardless of their storied history.
If you are out of warranty you might try M1 5W-40 TurboDiesel truck, Mobil Delvac 1 5W-40, or M1 0W-40. All of these do not require winter/summer viscosity changes unless you are in a polar region, so you could run them year-round.
Or just find another brand that you might consume less. I think Castrol has a good 5W-40, and their imported 0W-30 is very popular also.