I was asked about how the stock oil pressure gauge from a 94-96 Mustang (with the 20 ohm resistor shorted out) would work with the Autometer oil pressure sender.  So I hooked it up and tested it on my bench and took pictures.  Here is roughly what you will see if you do this:

0 PSI:

10 PSI:

20 PSI:

30 PSI:

40 PSI:

50 PSI:

60 PSI:

70 PSI:

80 PSI:

88 PSI: