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Rb20det Silver Top Oil Pressure?

HR-32

By HR-32,
in South Australia

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HR-32 Community Regular

HR-32

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Posted

in my rb20 (r32 gtst) the oil pressure fluctuates between 1kg/cm2 and about 5 or 6 kg/cm2, is this normal? does anyone know how it works? does the viscosity of the oil make a difference since i am using semi-synthetic penzoil? i am not sure if the oil pump is playing up or not and am getting paranoid about taking it hard. is this normal? i am not sure of the correct specs and cannot find them on the net anywhere. i have service books and all manuals with the car but my japanese is not good. are there english versions available? if so where from? :)

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https://www.sau.com.au/forums/topic/96357-rb20det-silver-top-oil-pressure/
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Blue32 Experienced

Blue32

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Posted

Try changing your oil pressure sender. It is usually the sender that breaks and gives erroneous readings on your gauge. I've changed 6 oil pressure senders for every gauge I've repaired from being u/s. Hope that helps!

Cubes Grand Master

Cubes

Posted
Posted (edited)

Mine plays up every so often..

Sometimes even dropping to what looks almost like zero ;)

Mine used to do this with the rb20det and now with the rb30det.

My issue is with the sender, pop through a decent mechanics shop and ask if they can do a oil pressure test while warm. It takes a few minutes to do so it would be expensive.

Castrol 10w60 gets oil pressure up there, too much for my liking with my fresh motor.

Castrol 5w30 is nice but a little too thin I think.

I've found the best oil for my motor is Motul 5w40 8100. Over the two above castrol oil's I've tried it makes the motor the quietest. With the motul you really have to listen for piston slap first thing in the morning, the castrol appears to simply make the whole motor noisy.

Edited by Cubes

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