My sending unit is located as you decribed , the difference the way the
oil is distributed
may be the reason my gauge responds differently . I just don't want to take any chances .
I'm guessing that the side oiler , the path of
oil travels from the pump , thru the filter ,
to the galley . If the galley needs to be filled ( after sitting a week ) I guess I could see a delay
in the pressure. It just seems different , shutting it down at the gas station , the pressure stayed
a while on the gauge .