Infiniti M45 oil capacity discrepencies

Dec 7, 2021
There is a possibility that the M45 sump is larger.
The FX45 is AWD and has the front diff mounted to the oil sump.
Not only that, but the left half shaft (CV shaft) goes through the sump.
In my opinion, you should try to find the OEM Nissan dipstick for the M45 and verify.
Also, check the sump visually and make sure it is not bent.
And lastly, check the oil in the morning, when the car has been sitting all night and it is completely cold and is parked on a perfectly level ground.