[Spumato]

Not sure if this was asked but when are you checking your oil level?

The engine has to be warm (180+ degrees) prior to being able to obtain an accurate read.
Anything less, and you are working with incomplete data.

The heating rule also applies for oil changes. The oil has to be warm to drain also.
Anything less, and you won't be able to clear the engine & reservoir(s) out completely.