Man, mine's way higher than that, even before I installed the Melling High volume unit.

Guess my truck needs to cut back on big macs and salt.

 

aim how high is yours? and on the Melling High volume did you have to get a new pick up screen tube thing?

 

mine usually stays above the 40 mark IIRC. I'll have to watch it closely tomorrow.

You don't need a new pickup tube, I just made sure there was no obstructions in the screen. There was some metal slag in the screen from the old pump. I replaced the pump with the HV pump when I replaced the rear main seal just as a preventative maintenance measure.

 

sounds good can't wait to hear back..... i may have to do some preventative maintenance also

 

Mine runs 40psi or more at all times

Rule 1 on oil pressure: For every 1000rpm you MUST have 10psi of oil presure any less and bearing failure will occur. You should have No less than 18psi EVER. 17psi and below the hydrolic lifters donot have enough oil pressure to stay pumped up so they start to collaps

 

visious 318, so does that mean that 4000rpm( i don't no that high ) you would need at least 40psi?

 

Under light cruising (like at approximately 1900 RPMs on interstate at around 70 mph), I will usually be around, I guesstimate from the needle position, 30 psi. When I give it 3/4 throttle or more to get her moving, like ya gotta do sometimes, it will go up to around 50-60 psi.

My Dakota did that too after I switched to synthetic oil, figured that was the cause of the increased variance in oil pressure.

 

1000=18psi min
2000=20psi
3000=30psi
4000=40psi
5000=50psi
6000=60psi
7000=70psi and so on

 

My rear main is leaking, which has been causing my oil pressure to be low at idle.

 

The 10# per 1000 RPM is from the 1960's. I have ran engines with 45 tto 55 # oil pressure 8000 to 8500 RPM with out any problems.