It could be burning it too. You could add an oil level check to your fuel refilling. Pull in, stop, poop the hood, fill the tank, pull the dipstick wipe it, insert and pull it again to see where it is. Have a couple quarts of your favorite brew with you to top it off.
I have taught this routine to my sons because they drive oil burners. The oldest 2 have Infiniti G35s, and youngest has a Mazda RX8.
__________________________________________
View my fuel log 2020 Mirage ES 1.2 manual: 42.5 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.0 mpg (Imp)