I do that sometimes when the car has not been started for a week or more. I have replaced the o-rings on the shaft that goes through the oil filter. The oil pressure came up quicker for a while. Seems like all too soon the delayed oil pressure problem returned.\

I'd say if we bought an ample supply of those o-rings and changed them with each oil change our delayed oil pressure would cease.

Does anyone know if the nitrate o-rings sold by Harbor Freight are suitable for this application?

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84 300SD
85 380SE
83 528e
95 318ic