Hi, I am a newbie. I own a '91 B2200, also an 1987 extra cab (B2000 before) now w/4.3,and 700r4, and 1987 B2600 4X4. I am trying to get an oil problem fixed. I need to know what the oil press. is on this 2600 engine. I have looked in a Haynes manual and did not find it. I think about 10 lbs at idle, and about 30+ running. Just guessing. Will somebody let me know for sure. Thanks.