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High Oil Pressure

iruvyouskyrine

By iruvyouskyrine,
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iruvyouskyrine Grand Master

iruvyouskyrine

Posted
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Just replaced the oil in my r32 gtst and my oil pressure is now reading about 6-7 on the stock oil pressure guage. The oil was replaced with Penrite 10w-40 fully synthetic and i completely drained all the oil and filled it with 4.7 litres. I think stock the oil is 7.5w30 so using 10w40 would make the stock guage read a litle higher because the oil is thicker? Should i even be worried about an oil pressure reading of ~7?

Thanks

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iruvyouskyrine Grand Master

iruvyouskyrine

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I knew the factory guage wasn't 100% accurate but i didn't realise it was that bad haha. The pressure reads constant from a cold start and even when the engine is up to operating temp. I know cold makes the oil a little thicker and would give a higher reading.

Also i am running an R34 turbo opposed to the standard turbo if that would make a differance...

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

stock gauge... may as well be using sand in an hourglass to measure it....

haha yes true that.

Although they 'eventually' get there provided the sensor is in good condition, of which is anyones guess if it aint been replaced.

Either way sounds normal when you are using heavier oil

itshimdazza Rising Star

itshimdazza

Posted
Posted

Thats interesting that you say there is an increase with Penrite 10w-40 fully synthetic .

I just did mine a week ago and ran the Liquid moly oil flush in first for 10-15mins to get rid of all the carbon build up & grime and used the exact same oil now it reads about 7on the stock gauge when cold starting but goes down to around 4 on the gauge once warm....

I thought i may of put too much oil in at first but i dont think so?

Dazza

iruvyouskyrine Grand Master

iruvyouskyrine

Posted
  • Author
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Thats interesting that you say there is an increase with Penrite 10w-40 fully synthetic .

I just did mine a week ago and ran the Liquid moly oil flush in first for 10-15mins to get rid of all the carbon build up & grime and used the exact same oil now it reads about 7on the stock gauge when cold starting but goes down to around 4 on the gauge once warm....

I thought i may of put too much oil in at first but i dont think so?

Dazza

I didnt use any oil flush or similar, i just dropped all the old oil out and filled 4.7 litres worth, factory specs. It is past high on the oil dipstick so i will drop some oil, but it still reads about 5-6 on the guage once warm...

More oil won't really change the pressure..

Ah i was under the assumption it would create more pressure. Either way i will drop some oil out so that its just under the high mark and see if that makes any difference.

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