The always-perfect oil pressure on this 462,000 mile animal dropped to the bottom of the gauge as I arrived home just now. Over the course of the last 2 miles of the drive, noticed around 20, then 10, then less as I parked.
No funny noises.
Gauge slightly reactive to RPM, so not a -dead- sender or gauge
Typical is 45 hot idle and higher at cruise
Oil consumption has always been negligible. Maybe a quart low at a 7500-10000 mile, 3 gallon change.
I see I’m at 7750mi, will check and probably change.
Very concerning.