about 20psi at idle (warm) and 40 to 50psi at 2000rpm.
jerking speed 40 50
On metric gauge 2.5 to 3 bar, about 40 to 45 psi. At least 15 psi, 25 psi would be better, 40 psi on a good engine.
Sounds like the Idle Air Control valve.
10w/40
Minimum spec at a warm idle is about 12psi. Normal is about 30 at idle. Should go 40-60 at 3000 rpm.
Around 40
Around 20 psi at warm idle, about 40 - 50 at speed. Should be the same for both the M998 series with the 6.2 naturally aspirated engine and the M1113 series with the 6.5 turbodiesel.
The engine computer is the voltage regulator.
I have a 1974 Chevy truck with the 350 V8 and the engine is in good shape. At idle the oil pressure is 35-40 PSI, at driving speed it goes up to about 50 PSI. Hope this helps.
Very normal for an engine with this mileage. Sounds like the engine is in good shape.
20-40 lbs