My 318....Is no more..... :(

the rule of thumb is to give someone an idea of how low of an oil pressure would be safe at an idle.....saying that 1,000 rpm and having about 10 psi of oil pressure would be "safe" and not have to worry about engine failure....not necessarily 10 psi for every thousand RPM's as thats not the case with every engine.....depends on if its factory pump or high volume or high pressure or how many miles are on an engine ect...ect...

I am not saying that 70 psi is "too high" of oil pressure....what I am saying is that if he is running a stock pump than 70 psi sounds to high and that it could possibly be a spun bearing or something and an oil hole is plugged which could be raising the oil pressure.

In my personal experiences factory 318's and 360 on average run around 25-40 psi at an idle and at about 2,000-3,000 rpms they run about 50 psi of oil pressure and at the max with the pedal to the medal the most I normally see them run for PSI on average is about 60 psi.

these are not exact numbers and these are numbers based on stock oiling systems .