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FF front diff fluid, 2016 Suburban, 7k miles #4352600 03/13/17 09:48 AM
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Rat407 Offline OP
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I sent this off when I changed the fluid out of our 2016 Suburbans front diff. It had 7k miles on it and I switched it over to AMSOIL's Severe Gear 75w-90.

The fluid looked like this when I drained it.



Here is what Blackstone had to say.



2002 Silverado 5.3 0w-20 AMSOIL
Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4352669 03/13/17 11:28 AM
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FordBroncoVWJeta Offline
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7K miles on the factory fill? There are many trucks that never change the diff oil and have 250K plus. I would have at least waited to 100K. This just sounds like overkill.


2017 Volkswagen Jetta 1.4T - 2015 Honda CRV 2.4 - 2012 Volkswagen Jetta 2.0 - 2007 Chevy Trailblazer 4.2 - 2003 Ford Taurus 3.0 Vulcan
Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: FordBroncoVWJeta] #4352752 03/13/17 01:09 PM
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Originally Posted By: FordBroncoVWJeta
7K miles on the factory fill? There are many trucks that never change the diff oil and have 250K plus. I would have at least waited to 100K. This just sounds like overkill.



Welcome to BITOG. There is a MASSIVE AMOUNT of "over maintenance" going on here. I towed a 5,500 pound travel trailer all over the country in my Silverado 5.3-6 speed transmission. At 50,000 miles (the vast majority of those miles were towing) I changed both my transmission fluid and differential. Both still visually looked good.



So yea-your right.

Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4352870 03/13/17 03:43 PM
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BobsArmory Offline
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My 2009 Silverado looked just like that when I originally drained the frond Diff. I always wondered if it was moisture contamination since it rarely got up to operating temp. That said, the 2nd time I did a drain and fill, it wasn't milky. I wonder if they had a lithium base in the factory fill.

Things that make you go Hmmm.....

Last edited by BobsArmory; 03/13/17 03:44 PM.

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Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4352897 03/13/17 04:13 PM
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I did it to see how it would turn out. I knew it was good. I also change out all the FF before 10k. Just the way I do things. I don't have a life, no hobbies. Considering what one spends on sports, fishing, hunting and such, mine is UOA's.


2002 Silverado 5.3 0w-20 AMSOIL
Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4354988 03/15/17 09:57 PM
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MolaKule Offline
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Originally Posted By: Rat407
I did it to see how it would turn out. I knew it was good. I also change out all the FF before 10k. Just the way I do things...


I think that is a wise practice.

Last edited by MolaKule; 03/15/17 10:01 PM.

The value of a scientific theory is its ability to prompt further study, not that it has any relation to the established facts of scientific reality.
Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4893991 10/11/18 02:04 PM
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Titanium compound to mark the ring gear pattern. when the diff is set up


2015 F150 2.7
2018 F350 6.2
Re: FF front diff fluid, 2016 Suburban, 7k miles [Re: Rat407] #4893993 10/11/18 02:05 PM
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I do an early change on every vehicle I buy then go on the factory interval'


2015 F150 2.7
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