When you used the mechanical pressure gauge, did it read low too? Also, when you changed the oil and got good pressure for a short time, did you also change the filter at that time? Have you tried an engine flush? I'm a little confused as to how the oil could be dirty when drained, but clean on the stick.
When the pressure drops to 0 or very low, do you hear any ticking or knocking in the engine? Finally, is this the original engine with 379K on it?
Let me know.
Joe
Thursday, September 3rd, 2020 AT 11:24 AM
(Merged)