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Oil Pressure

  • 1993
  • 911 America Roadster
Mileage: 
138 000
Engine
Hendersonville, 
North Carolina

My 1993 America Roadster has 4-5 bar oil pressure during drives however, when coming to a stop the pressure drops to 1 bar or below that illuminates the oil pressure light. The oil level is at maximum and use 20W-60W Liqui-Moly. My mechanic tells me this is ok and on the next oil change he will place an extra oil pressure spacer ring, which will increase the oil pressure at idle. Is this a normal fix for this type of low oil pressure at idle?  

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