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Old 10-25-2010, 10:08 PM   #1
Join Date: Oct 2010
Location: Picayune,MS
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Gear oil question

can someone please tell me which gear oil to use in my o4 wrangler tj!

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Old 10-25-2010, 10:13 PM   #2
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75w-90w or 80w-90w

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Old 10-25-2010, 10:28 PM   #3
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Appreciate it. If I used the wrong gear oil would that cause it to make a whistling sound while I'm driving? The whistling stops when I stop.
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Old 10-25-2010, 10:31 PM   #4

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I'm no expert, but I wouldnt think so.

1995 YJ
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Old 10-27-2010, 09:32 PM   #5
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not sure about the TJ but supposedly YJ's require GL4. I would look at what works best in a TJ 75w90 GL4 or GL5 (prolly gl5 to be honest, either should be ok though)
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Old 10-27-2010, 11:18 PM   #6
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I use Amsoil 75w90

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