Intermittent oil pressure/lack of oil pressure

Low oil pressure at idle with thin synthetic is not necessarily a problem.

At 200f, that oil is as thin as any clean 30 weight oil -synthetic or not. Some synthetics get to the proper viscosity quicker than conventional oils.

If you want more pressure at idle, go to a thicker oil like a 20-50. All that lower number means is how it behaves when cold. At operating temp, the higher number is the actual weight of the oil.

I have noticed the mopar crowd tends to panic and rip an engine apart at the slightest question. How about some more info first:

What is the hot oil pressure @ 1500 engine rpm in neutral?

What about 2500 rpm?

How long have you been running the synthetic? How many miles on the filter?

As long as the pressure comes up off idle, there may be nothing wrong. I have a fresh 392 in the yard that has maybe 2psi at idle hot. It has no problem hauling 19,000 pounds of truck around all day long, much of the time @ WOT. Lots of flow across those bearings keeping things cool.

B.