There is apparently a TSB out on this problem for 2021 vehicles with the 2.5 Turbo. I just posted my experience. Here's the TSB:Hoping someone can advise if they have this issue. Was driving over to Zaxby's for lunch and my oil engine indicator came on. Have to go up a hill to get to it but it's only a quick incline then levels out. Sitting in line a minute after and the engine oil light comes on. Check the vehicle status screen and it says engine oil low. I turn off the car right there, turn it back on and the indicator light goes out, nothing in vehicle status screen. Car is not running oddly or anything, no smoke, initial look around the engine doesn't show any visible leaks (can't see under the car due to the cover in place down there at the moment, but nothing on the concrete either. Park the car back at work (less than 2 miles) and wait about 30 minutes and oil reads practically dead center between the two marker holes (as far as I'm aware that's perfectly acceptable). Going to take it by the dealership when I get off.
Mazda Oil Consumption TSB Turbo Engines
Components: ENGINE AND ENGINE COOLING, TIRES, ELECTRICAL SYSTEM
NHTSA ID Number: 10202685
Manufacturer Communication Number: 01-012-21-3832
5 Affected Products
MAKE MODEL YEAR
MAZDA CX-30 2021
MAZDA CX-5 2021
MAZDA CX-9 2021
MAZDA MAZDA3 2021
MAZDA MAZDA6 2021
Some vehicles may have a LOW ENGINE OIL LEVEL warning message and a CHECK ENGINE light illuminated in the instrument cluster, along with DTC P250F:00 stored in memory. DTC P250F:00 - Engine oil level signal: engine oil level low. Upon inspecting the engine oil level, the level is found to be low and there doesn't appear to be any trace of oil leakage in the engine compartment. This concern usually occurs when the mileage reaches approximately 3,100 - 4,700 miles (5,000 - 7,500km) and may also occur again after replacing or topping off the engine oil. The root cause of this concern has not been identified yet, therefore a repair procedure will be announced at a later date. Since this issue has been reported after a valve stem seal modification, it is very likely that valve stem seal damage is causing oil to leak into the combustion chamber.