2020 ram 1500 5.7 oil preassure issue..

[Fed372]

We just did an oil cooler. We usually run amsoil. Opted for mobile one 5w20. This
Time..... Pressure seems low. I know it used to be 50psi at speed. im seeing 46psi max at 70mph now. See photos. One of idle one of driving. Last think i need is to lose an engine. Any insite/reassuance appreciated

 

[SD Rebel]

Your idle is fine, especially hot idle will drop to 29 psi, typical just hot around 31-34 psi at idle.

However, your at speed seems off, I will typically see 50 psi at constant throttle at speeds as low as 35 mph. I wonder if the sensor is off somehow, maybe associated with your cooler change. Give it overnight and drive again, see if it's still kinda low at speed.

The actual pressure itself isn't low in regards to what the engine needs, however the reading is low for what you typically see on the 5.7L, especially given you recently did work, it could be associated with that. I don't think it's the oil, I run 0W-20 and get the same pressures when running 5W-20.