Hello,

I have a 69 Dodge Super Bee 440 six pack. I am getting very low to no oil pressure at warm idle. At 1500 RPM I have 50psi. I have tried new oil pumps and oil filters, new pressure gauge but still have the same issue with low to no oil pressure at idle. It seems as though there is air in the oil pressure system. When I took off the oil line to the gauge air comes out with the oil and it is off and on not consistently blowing out air and oil. There is no knock in the engine only lifter noise when there is no oil pressure. Any suggestions as to what may be causing the problem or something else I might be able to try to correct the issue. Thanks. Any help will be greatly appreciated.

 

Try 5 Quarts of 40W SAE engine oil and 1 bottle of STP oil treatment and see if it acts better...