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Old 08-20-2010, 10:36 AM   #1
Scooby Guru
Member#: 82989
Join Date: Mar 2005
Chapter/Region: SWIC
Location: Arizona
2002 WRX
Hybrid EJ257

Default Prosport oil pressure gauge reads 25psi higher

So ever since installing my Prosport oil pressure gauge, I always wondered why it said my oil pressure was so high. Rarely do you hear about high oil pressure issues. My Prosport gauge would read 58psi at warm idle, and always pegged at 120psi at anything above 2000 RPM. To make sure the gauge was reading correct/incorrect, I picked up a mechanical oil pressure gauge that screwed right into my sandwich adapter. Sure enough, at warm idle, the mechanical gauge is reading 35psi at warm idle, while my Prosport gauge is reading 58-60psi. That's 25psi difference.

I'm glad that rules out my thoughts of a high oil pressure problem...

Ryan314 is offline   Reply With Quote

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