Grey milky Differential fluid - Defender Source
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  #1  
Old October 8th, 2008, 10:46 PM
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Grey milky Differential fluid

I checked all my fluids today, and to my surprise, everything was in order, pretty much as full as it was 8000 miles ago. One thing I did notice was that the front diff fluid was a strange grey/white color, the rear wasn't anything like this?
Thanks
I used synthtic finish line 8000 miles ago(75-90wt)
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  #2  
Old October 8th, 2008, 10:58 PM
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Tom,
milk= water contamination. not sure if you use yours in water- I do and have the breathers for everything extended and run up and terminated @ the top of the snorkle inside the "mushroom cap". When you drive into water with an axle/transmission/or transfercase thats up to operating temp the water cools things rapidly and a vacuum is developed and if your beather line isn't above the water line it pulls water in
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  #3  
Old October 8th, 2008, 11:10 PM
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Heavy rain is really all it has been in? the diff has def not been under water, but I'll check the breather.
Thanks Doug
I gave you a call today
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  #4  
Old October 8th, 2008, 11:18 PM
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Been there and done this. I wheel the 90 pretty good, lots of mud/water etc. I had to stop in water hole for a few no big deal. I recently changed all the fluids in my driveline the rear diff was a little funky, front looked fine. The swivels were fine.

new RRC basically a basket case. Changed all the fluids, the swivels were empty front diff was funky, the rear diff obviously had been under water I basically drained mud out. A few hundred miles later I drain everything again. THe swivels looked good the front diff looked good the rear diff looked pretty funky still. Hard to day Ive beat the Defender up a little the RRC has obviously been abused and neglected. I hope that the next fluid changed the rear end on the RRC looks good, if it doesnt its going to be 24 splines and a traction aide. Not to be alarmed on funky looking fluids but if these things cant keep heavy oil in how will they keep water out? Plus if you are riving and 85 you may just be on borrowed time on worn out diffs?
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Old October 8th, 2008, 11:24 PM
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Quote:
Originally Posted by tomaco1
Heavy rain is really all it has been in? the diff has def not been under water,
Caveat:

Since you've owned it.


I change diff oil like pants, it's cheap in 5 gallon buckets and I dunk them a lot. ARB's and gear sets are $$$, oil is cheap.
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Old October 8th, 2008, 11:26 PM
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Quote:
Originally Posted by KevinNY
I change diff oil like pants, it's cheap in 5 gallon buckets and I dunk them a lot. ARB's and gear sets are $$$, oil is cheap.
x2, this past year I think ive changed diff oil more frequently then engine oil..
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  #7  
Old October 9th, 2008, 08:13 AM
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I had put synthetic oil in the diffs, I guess that is a waste? Or overkill
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Old October 9th, 2008, 08:35 AM
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I'm under the belief that if you change it often enough, use dino.. LR's service interval for changing diff fluid (at least for a Disco2) is 90k miles... if you're keeping it in that long, you should use the best synthetic you can find.

Plus, the trutrac I have likes dino better it seems..
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  #9  
Old October 9th, 2008, 08:36 AM
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I say its a waste. Change it frequently with cheap stuff.
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  #10  
Old October 9th, 2008, 10:31 AM
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Yeah there is a cheap brand of dino in all the auto parts stores here branded Coastal. A gallon of 75w90 costs less than a quart of the Royal Purple synthetic. I put the royal purple in the lt230 (93 not sure if its crossed drilled or not-trying to get as much life out of it as possible) but dino in the axles.
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  #11  
Old October 9th, 2008, 02:27 PM
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"93 not sure if its crossed drilled or not-trying to get as much life out of it as possible"

Buy the "flinger."
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Old October 9th, 2008, 08:41 PM
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Quote:
Originally Posted by rover4x4
Been there and done this. I wheel the 90 pretty good, lots of mud/water etc. I had to stop in water hole for a few no big deal. I recently changed all the fluids in my driveline.....
Really Phil? How much fluid does a driveline take?
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