Since we don't have a real pressure gauge, I used the method in this video to connect an oil pressure gauge and measured the oil pressure from cold start (75F) to almost operating temperature (190 F). Once at operating temperature, the reading is shown at idle (630 RPM), 1500 RPM, 2500 RPM, and finally 3500 RPM.
Here's the video:
Too long didn't read (TL;DR):
0:00 - Idle cold: 65-70 PSI
0:00- 11:30 warming up
Not shown - Idle hot (1 hour driving): 10-20 PSI
11:28 - 1500 RPM-hot: 50 PSI
11:40 - 2500 RPM-hot: 55 PSI
11:55 - 3500 RPM-hot: 65 PSI
02 Oldsmobile Bravada 4.2L, 235K miles
Here's the video:
Too long didn't read (TL;DR):
0:00 - Idle cold: 65-70 PSI
0:00- 11:30 warming up
Not shown - Idle hot (1 hour driving): 10-20 PSI
11:28 - 1500 RPM-hot: 50 PSI
11:40 - 2500 RPM-hot: 55 PSI
11:55 - 3500 RPM-hot: 65 PSI
02 Oldsmobile Bravada 4.2L, 235K miles
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