Hello all,
I am boosting my "toy" with a turbocharger. Recently, I have found a problem that the engine oil pressure drop when the engine get hotter.

When the engine is running at the idle the oil pressure indicates at the Honda's Spec. ( 2.5 kg/cm^2... something like that)

After couple boostings as I mentioned then let the engine run at idle. The pressure indicates at the range 1.5 to 2.0 kg/cm^2 instead of 2.5.

I'd very much appreciate for any appropriate advices

Thanks
Dan


Note: I am using the Greddy oil pressure gauge and running with 10-30 Mobil one full synthetic

 

Heat ---> lower oil viscosity --> lower oil pressure.

Do you have an oil temp gauge?

 

Thanks for your respond,
I agree with you that the vicosity of the oil get thinner when it is hot. My concern that I have lost approximate about 10 psi.
I don't have the oil temperature gauge. However, when I installed the oil pressure gauge. I left the wire which used to be for the factory oil pressure out ( unconnected)
Do you think that would cause the engine not to read the oil pressure?

Thanks
Dan