Smelling your dipstick for fuel is about as accurate as sticking your finger up your butt to tell how much corn you’re eating.
Oil viscosity is determined by bearing clearance. Put an overweight oil in and not only will oil temps rise too much, but you risk damaging the bearings.
Oil volume differs greatly with temperature. Room temp oil that is at the full mark on the dipstick will be well above the full mark after just a bit of running. If you really want to see if your oil level is changing, check the oil pan and block temp (since we have no oil temp gauge) with a...