Changed the oil recently in my 1989 560sl because it hadn't been changed in nearly 2 years (pennzoil 15w30), completely out of my control because of covid 
Before I changed it the oil pressure was always just above 2 at idle and shot up to 3 when I was driving, after I changed it using 5w30 quaker state conventional it's now 3 at cold start and when I'm using the accelerator but at idle when it's at operating temperature it slowly goes down to 1.8~. \
(The previous oil was pennzoil...
Low Oil Pressure
Before I changed it the oil pressure was always just above 2 at idle and shot up to 3 when I was driving, after I changed it using 5w30 quaker state conventional it's now 3 at cold start and when I'm using the accelerator but at idle when it's at operating temperature it slowly goes down to 1.8~. \
(The previous oil was pennzoil...
Low Oil Pressure
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