Oil pressure - JeepForum.com
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post #1 of 4 Old 07-28-2002, 06:30 PM Thread Starter
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Oil pressure

What is normal oil pressure for a 4.0? My old 258 would run at about 20psi. I got my 4.0 wired in and it seems to run at 40psi. I like the looks of that a lot better

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post #2 of 4 Old 07-29-2002, 07:22 AM
Dan's YJ
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Mine runs between 40-50. Mid to upper 40'ish when it's fresh and around 37-40 when I need to change it.

1994 Bronco HD
Warn 8000
2"lift, 32x12.50
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post #3 of 4 Old 07-29-2002, 03:41 PM
Dan Morera
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Well my 258 run upper 70s when cold and down to 50 when hot.

YJ Sahara 88, 258 I6, BA/10
2.5" Susp. Lift (Aprox.), 1" Shackles 31x10.5" Cooper
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post #4 of 4 Old 07-30-2002, 10:21 AM
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Running 20W-50, I get 80 psi cold, and no lower than 40-45 psi at its hottest.
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