[Project N64]

what is normal oil consumption for a BRZ? i hear some people talking about 7k+ interval oil changes. Is that without topping it off? for me at 3000-3500 miles the dipstick gets very low. should i just stick to 3k intervals? i set up an oil consumption test with dealer i will return in 1200 miles returning car stock. could my engine be prematurely failing? it's flash tuned with a uel header since 12k miles nothing else, it's at 27k miles now. Has always been dealer maintained have all records showing the car has never been neglected with it's maintenance. I have never over revv'd the car, i hear this is a common engine killer. Also could a compression and leakdown test with good results and still have something broken and or prematurely worn with the engine? The consumption started at around 17k miles