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Unread 07-28-2002, 07:30 PM   #1
West
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Join Date: Nov 2001
Location: Buzzards Bay, MA
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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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Unread 07-29-2002, 08:22 AM   #2
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.
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Unread 07-29-2002, 04:41 PM   #3
Dan Morera
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Well my 258 run upper 70s when cold and down to 50 when hot.
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Unread 07-30-2002, 11:21 AM   #4
4wheeler4CJ
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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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