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Old 02-18-2007, 04:54 PM   #1
sdlemaster
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Diff Fluid Change

I am about to change the fluid in my diff's and I bought some mobil 1 synthetic 75w-90 and I want to know if this is ok because most sites I am checking now say to use 80w-90 or 75w-140. Is this ok to use? Thanks.

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Old 02-18-2007, 04:56 PM   #2
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It is fine.
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Old 02-18-2007, 05:00 PM   #3
Jerry Bransford
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Yep, only if you tow would it be more important to be running something heavier like 75W-140 etc. There is so little actual difference in viscosity in the 70W-80 or 75W-90 etc. area that it's six of one or half-dozen of another.
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Old 02-18-2007, 05:54 PM   #4
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Since we are on the subject, do I need the Trac-loc additive for the diff's on a Rubicon? The manual doesn't really make it very clear and I haven't been able to find the answer searching.
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Old 02-18-2007, 05:55 PM   #5
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Quote:
Originally Posted by Naby
Since we are on the subject, do I need the Trac-loc additive for the diff's on a Rubicon? The manual doesn't really make it very clear and I haven't been able to find the answer searching.
No, you don't need it.
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Old 02-18-2007, 08:04 PM   #6
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Quote:
Originally Posted by Naby
Since we are on the subject, do I need the Trac-loc additive for the diff's on a Rubicon? The manual doesn't really make it very clear and I haven't been able to find the answer searching.
No, the lsd (in the Rubi) isn't clutch based, so you don't need the additives.
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Old 02-18-2007, 09:59 PM   #7
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Thanks. I didn't think so but I wasn't sure.
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