Makes sense, I swear we were told in class to do it while on.Are you saying that you are checking the oil while the engine is running and the RPMS drop?
If so that would be normal, because you are breaking the PCV systems vacuum by removing the stick.
Check the oil with the engine OFF, after it has reached operating temperature.
I swear we were told in class to do it while on.
Actually been doing it for over 10 years never had an oil showerNah, just warm the car up 1st because motor oil is like maple syrup in that it gets thicker when it's cold.
You're lucky you didn't get a hot oil shower.