Hi guys, My normal oil pressure is 25-37 psi (warm)
I usually idle around 25 psi, and cruise at normal/high temps around 30-35. (1750 rpm at 65 mph) At higher rpms 2200-3000 i see a warm 70, hot 50, rare that i go past 2000 rpm though.
I've run m1 0-40 (speced) pre t6 Rotella 5-40, t6, Delvac 1, and tdt. and they pretty much have the same pressure at warm/hot temps.
Now the problem, i've used oem, m1-301, and recently wix 1516
They all seem to have the bypass set to 8-11 psi.
This is significantly lower than my lowest oil pressure, in fact the FSM for my vehicle stats the minimum oil pressure is in fact, 12 psi at hot idle. I've never seen anything below 24 psi.
Should i be looking for a filter with a higher by pass? Something in the 35 psi range maybe?
On "cold (san diego)" starts i always peg the pressure gauge at 100 psi idle for 1-5 minutes depending on temps.
My gauge is an after market, self installed gauge, verified it with a physical test gauge manufactured by caterpillar.
Vehicle is a 2006 Jeep liberty crd with the turbo diesel i4 2.8L
I have about 5 UOA's 4-9k oci. and they always show insolubles of .3, and i have egr blocked.
Oil is always very sooty. I have considered Centrifugal filters or a secondary bypass setup, have limited physical room, would like to get this sorted.
Thank you for your comments.
I usually idle around 25 psi, and cruise at normal/high temps around 30-35. (1750 rpm at 65 mph) At higher rpms 2200-3000 i see a warm 70, hot 50, rare that i go past 2000 rpm though.
I've run m1 0-40 (speced) pre t6 Rotella 5-40, t6, Delvac 1, and tdt. and they pretty much have the same pressure at warm/hot temps.
Now the problem, i've used oem, m1-301, and recently wix 1516
They all seem to have the bypass set to 8-11 psi.
This is significantly lower than my lowest oil pressure, in fact the FSM for my vehicle stats the minimum oil pressure is in fact, 12 psi at hot idle. I've never seen anything below 24 psi.
Should i be looking for a filter with a higher by pass? Something in the 35 psi range maybe?
On "cold (san diego)" starts i always peg the pressure gauge at 100 psi idle for 1-5 minutes depending on temps.
My gauge is an after market, self installed gauge, verified it with a physical test gauge manufactured by caterpillar.
Vehicle is a 2006 Jeep liberty crd with the turbo diesel i4 2.8L
I have about 5 UOA's 4-9k oci. and they always show insolubles of .3, and i have egr blocked.
Oil is always very sooty. I have considered Centrifugal filters or a secondary bypass setup, have limited physical room, would like to get this sorted.
Thank you for your comments.