4.0L Oil Pressure - Great Lakes XJ

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Date: Mar 21, 2008

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I know that the XJ oil pressure gauges are funky and 90% of the time not correct. That being said about where are you guys running while driving with your stock 4.0L motors? Also does your fluctuate (sp?) between when your driving and when your at idel. If so how much? Also would like to know what viscosity of oil your running. THANKS! __________________ '93 XJ Cherokee Sport - build thread '89 XJ Cherokee Laredo - build thread '88 MJ Comanche Pioneer SWB - build thread '87 MJ Comanche LWB '94 YJ Wrangler - build thread

Chris99XJ

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Date: Mar 21, 2008

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I just changed my oil Before the change, My gauge was @ 40 Now after oil change it is @ the 1st notch past 40 Im using Quaker State High Milage 10W30 __________________ 1999 XJ SPORT, 4.5'' LIFT, 32'' X 11.50'' TIRE'S " IF IT AINT RUFF IT AINT ME ! "

LEAD_NOT_FOLLOW

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Date: Mar 21, 2008

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I am not familar with the newer XJ gauge clusters. Does it go 40/60/80 as far as the marks go? The 60 is just a mark (no numbers) between the 40 and the 80? __________________ '93 XJ Cherokee Sport - build thread '89 XJ Cherokee Laredo - build thread '88 MJ Comanche Pioneer SWB - build thread '87 MJ Comanche LWB '94 YJ Wrangler - build thread

Chris99XJ

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Date: Mar 21, 2008

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Mine go's 0 l l l 40 l l l 80 -- Edited by Chris99XJ at 12:46, 2008-03-21 __________________ 1999 XJ SPORT, 4.5'' LIFT, 32'' X 11.50'' TIRE'S " IF IT AINT RUFF IT AINT ME ! "

92XJT

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Date: Mar 21, 2008

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I know mine is always low, in fact I was leary on buying it a few years back cause of the reading. usually when I first start it the highest it is will be around 35ish and warm at idle can get below 20lbs. Though it has high miles on it 235xxx, but its just a wheelin rig so I am not too concerned yet.

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07 Powerwagon, pretty much stock besides Line X bedliner and dual exhaust. Quad cab, fully loaded (minus nav), etc

92 XJ sport, 33" boggers, 4.56 gears, rear locker, more to add

07 Arctic Cat 400 4x4, lockers front and rear, 2500lb MM winch

firehawk

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Date: Mar 21, 2008

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Mine runs 50 psi at anything over idle. When it is cold I get 60 psi in the winter at start up. At idle I am usually at 30 psi unless it is REALLY hot, and it's been driven for a long time. Then it will be at around 20-30 psi at idle.

I run 10/30 in the winter, and 10/40 in the summer. Nothing but Castrol for me, and the readings don't change any between viscosity.

-- Edited by firehawk at 16:05, 2008-03-21

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2000 Cherokee Sport

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Topic: 4.0L Oil Pressure