Low Oil Pressure at Idle

[EBS]

Thanks for the suggestions and offer @evilfij. After I change the sensor, which is probably wishful thinking, I think the next step will be to check the pick up tube and then the pump with maybe the ATF trick somewhere in between.

 

[evilfij]

Slap some cross seals in when you pull the pan if you have any wetness at the back of the pan (95% plus “rear main” leaks are the cross seals).

 

[EBS]

I changed out the sensor for a new genuine one and haven't seen it light up at idle yet. I also chatted with my mechanic about it and he agreed 13psi was low, but he also said getting a good reading is apparently very tricky. His take was that if I don't hear any ticking, the genuine sensor isn't lighting up, and I'm using the 20W50 it shouldn't be a problem. He also recommended some marvel mystery oil. That all said if I'm feeling ambitious this fall I might take apart the oil pump to see what the surface of the cover looks like.