i have a 1991 sovereign xj6 and i have the same problem, BUT the gauge would show correct levels when accelerating
Oil level and oil pressure are different. You don't need to have full oil to get normal pressure.
Failed gauge, wiring, or level sensor.
It has an internal leak letting water get into it.
try looking at the pressure gauge on the side of the trigger body
If your oil level is full and you have low oil pressure it can be nothing more than a defective oil pressure sending unit or defective gauge. But, it can also be a weak oil pump. I would replace the filter first thing and add enough oil to reach the full mark and see if the condition goes away. If not, then replace the oil pressure sending unit.
The compressibility of water is very low.
Sound power level is equal to sound pressure level and intensity level at a distance of r = 0.2821 m from the source at full sphere propagation. See related Link.
Check the oil level to make sure that it is full. The oil filter could be clogged, the oil pump could not be working properly, the oil pressure sending unit could be bad, or there is an internal engine failure.
Check the oil level, if it is full, you got problems, don't drive it.
Bad sending unit. This is what reads the tank level and sends it to the gauge.
Level sensor may be defective or disconnected. Possible wire could be damaged.
Use a freon gauge and freon refill can. Connect the gauge to the low pressure ac port of the 2003 Stratus. With the engine running and ac on high, fill the system until the gauge shows full.