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Old Jul 19, 2012 | 10:06 PM
  #16  
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Originally Posted by UsmclovesXJ

Wtf?!
Ignore them. Trolls. Ban soon to come
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Old Jul 19, 2012 | 10:19 PM
  #17  
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Originally Posted by odgreen89on35s

Ignore them. Trolls. Ban soon to come
Just a blank pic tho?. What a dumb biddy.
And i thought that person was banned once
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Old Jul 19, 2012 | 10:21 PM
  #18  
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Different user name. Different ip number.
Nothing can stop them. We ban and they just troll back. If your on a pc and click the pic it takes you to a website.
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Old Jul 19, 2012 | 10:59 PM
  #19  
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Originally Posted by odgreen89on35s
Different user name. Different ip number.
Nothing can stop them. We ban and they just troll back. If your on a pc and click the pic it takes you to a website.
Gotcha and i'm on the app. Right now so didnt work.
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Old Jul 19, 2012 | 11:36 PM
  #20  
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Thinner is better.
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Old Jul 19, 2012 | 11:46 PM
  #21  
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Originally Posted by BigBear
Thinner is better.
Thats debateable
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Old Jul 20, 2012 | 12:54 AM
  #22  
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Originally Posted by CPTslackass
I'll say the same thing about the 4.0 as I do about the Alfa twin cam. The day you don't hear any noise, is the day you need to worry about your motor :-p.
Like the old saying about British sports cars. Worry when they stop leaking oil. It means they've run out.
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Old Jul 20, 2012 | 12:58 AM
  #23  
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I put MB1 HM in mine and have been doing it since I got it. I always use the mopar oil filters as well. They sell em' at Walmart for cheap and the jeep seems content with that combo for now. Eventually as it gets older (and my oil leak worsens) I am going to switch over to 15w40. I've got about 140k miles on it now almost.
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Old Jul 20, 2012 | 02:09 AM
  #24  
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Originally Posted by UsmclovesXJ

Thats debateable
90% of engine wear is at start up until it warms up to normal operating temp.
If you want thick oil then prepare for engine wear. You can run 0w-30 and be perfectly fine. And for those who will say that it wasn't meant for that oil I have this to say. Better oils weren't around but it doesn't mean it will not work. The thinner oil will be better for cold starts and reach it's operating temp quicker. Just because you don't live in a cold place doesn't mean you can't use that oil.
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Old Jul 20, 2012 | 02:19 AM
  #25  
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Originally Posted by BigBear
90% of engine wear is at start up until it warms up to normal operating temp.
If you want thick oil then prepare for engine wear. You can run 0w-30 and be perfectly fine. And for those who will say that it wasn't meant for that oil I have this to say. Better oils weren't around but it doesn't mean it will not work. The thinner oil will be better for cold starts and reach it's operating temp quicker. Just because you don't live in a cold place doesn't mean you can't use that oil.
i'm still not 100% sure where this quote came from {the 90%} but i'm fairly sure it's regarding dry starts and the metal on metal wear. modern synthetics have excellent cold flow and a 5-40w T6 rotella will have near instant oil pressure on start up. you can start comparing cold pours and whatnot to figure out what works in your climate. the real benefit to higher zinc/phos oils is the anti wear additive packet. cam lobes and cylinder bores dash rings get hammered with low zinc oil, well, hammered more than higher amounts.

thin oils do make more hp and do pressurize faster, it's just hard to say how much faster a 0-30 would pressurize vs a syn 5-40. i do know that the extra zinc/phos in that 5-40 will be a lot easier on lobes and rings. this becomes even more important if you drive hard. you will also have less oil pressure with the 0-30.

in the end, the only real problem i have with 0-30 in a cherokee is they are all api SN, well, as far as i know. if one actually came with an additive pack that was similar to 90s oil which the engine was designed for. sure, it would work.
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Old Jul 20, 2012 | 02:34 AM
  #26  
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97 with 12X,XXX running dino juice 10w30
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Old Jul 20, 2012 | 02:46 AM
  #27  
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Originally Posted by racebum

i'm still not 100% sure where this quote came from {the 90%} but i'm fairly sure it's regarding dry starts and the metal on metal wear. modern synthetics have excellent cold flow and a 5-40w T6 rotella will have near instant oil pressure on start up. you can start comparing cold pours and whatnot to figure out what works in your climate. the real benefit to higher zinc/phos oils is the anti wear additive packet. cam lobes and cylinder bores dash rings get hammered with low zinc oil, well, hammered more than higher amounts.

thin oils do make more hp and do pressurize faster, it's just hard to say how much faster a 0-30 would pressurize vs a syn 5-40. i do know that the extra zinc/phos in that 5-40 will be a lot easier on lobes and rings. this becomes even more important if you drive hard. you will also have less oil pressure with the 0-30.

in the end, the only real problem i have with 0-30 in a cherokee is they are all api SN, well, as far as i know. if one actually came with an additive pack that was similar to 90s oil which the engine was designed for. sure, it would work.
Yea you will have what you consider good oil pressure at startup but that's because the oil is so thick. Even synthetic oils are too thick to prevent cold start damage. But the thinner oils makes it that much better at preventing engine wear.

Think of the oil like blood pressure. You want high or low pressure? You can always add additives to the thinner oil.

New cars run thinner oils for a reason. Running thicker oil only masks any problems or noises and are sometimes louder at cold start.

You want free flowing oil not slow thick oil.

Last edited by BigBear; Jul 20, 2012 at 02:49 AM.
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Old Jul 20, 2012 | 07:58 AM
  #28  
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Originally Posted by HINKLE83
97 with 12X,XXX running dino juice 10w30
X2 10w30 with 1 can of Lucas
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Old Jul 20, 2012 | 08:46 AM
  #29  
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First priority is FLOW....pressure is just a number and usually an indication of wear and has little to do with lubrication. High oil pressure from thick oil is a BAD thing. If you have a noisy engine with alot of miles 15-40 is about as heavy as I would use.
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Old Jul 20, 2012 | 12:14 PM
  #30  
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Originally Posted by UsmclovesXJ
X2 10w30 with 1 can of Lucas

http://web.archive.org/web/201009261...ucas/lucas.htm
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