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Old 07-30-2012, 01:47 AM   #1
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Default what oil pressure do you see?

something is wrong with my oil pressure sender/gauge. in my last car the pressure would rise with increased rpm. this gauge just sits at about 50psi regardless of heat or rpm. i'm guessing i have a bad sender. the sender is installed on the sandwich adapter.
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Old 07-30-2012, 02:27 AM   #2
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Are you using your stock NB sender? If so then it is not a true sender and just reads if you have pressure or not.
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Old 07-30-2012, 02:50 AM   #3
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no, this is a aftermarket vdo sender and gauge. should have been more clear.
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Old 08-06-2012, 08:59 PM   #4
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does no one use a aftermarket oil pressure gauge? I just wanted to get an idea of what pressure I should see at low rpm vs high rpm
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Old 08-07-2012, 01:23 AM   #5
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My oil pressure varies with RPM. My sender is attached to a sandwich plate. With 0w30 at idle I see anywhere from 12-18psi depending on how warm the engine is. At WOT it's 70-80psi, I think, don't watch it much then. Cruising on the freeway I believe I'm at 45-55psi.

I think your sender is borked.
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Old 08-07-2012, 03:33 AM   #6
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General (very general) rule of thumb: 10 psi for every 1,000rpm

Obviously every engine is different depending on design, but this will get you a baseline.
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Old 08-07-2012, 09:07 AM   #7
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w/ Rotella T6 I'm around 15psi hot @ idle and it shoots up to at least 60 or so when revved up.
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Old 08-07-2012, 12:39 PM   #8
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I have a stock "real" gauge with the sender in the factory location, and an Autometer with the sender in a sandwich plate. They both read aprox 20psi at idle warmed up and 50ish highway cruising. Rotella T 15/40
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