Here is my UOA on PU Euro 5W-40. My WRX consumed more than 1L of it over 5,500 kms.
Stock OEM blue oil filter.
My driving pattern involved a mix of highway and some short driving distances and cold ambient temperatures in November and December.
The car is basically stock with full Turbo Back & Up-pipe exhaust and Stage 2 Cobb tune.
Stock and original turbo.