Well the oil cooler has a t stat, as the oil gets warmer the t stat opens more and you will lose oil pressure.
Spec is .3 bar at hot idle and pegging at 3 bar by 3k rpm. As long as you are within specs MB says you are fine.
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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200
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