I always check my oil level in the morning after the vehicle has sat overnight I think that is the most accurate reading once a week minimum
For what its worth I use between 1 1/2-2qts per 5000 miles 10w30 synthetic and its consumption not leaking anywhere but I dont have any blue smoke on start up it seems to run fine
My dealer told me that Chrysler says 1qt per 600 miles is acceptable dont know how they come up with that figure but I have had two 3.3ltr engs & used NO oil between changes