Front Diff Fluid ... normal?

bigalpha

Moderator

Location

Tucson, AZ

• Mar 11, 2009

• #1

I changed the front diff fluid today. What came out was dark grey and kind of thick. Surely, that can't be normal.

Is teh color indicative of going too long w/o changing, or water contamination?

 

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nick86

NAXJA Forum User

Location

iowa

• Mar 11, 2009

• #2

water contamination

 

bigalpha

Moderator

Location

Tucson, AZ

• Mar 11, 2009

• #3

Suck.

Gears looked good, though, nothing was rusty or anything.

Does the rear (8.25) take 80-90 too?

 

Stihl029

NAXJA Forum User

Location

San Diego, CA

• Mar 11, 2009

• #4

Yeah they take the same thing, unless you require a friction modifier put that in first then the gear oil. There have been several threads on what grade is the best, I run whatever I can get ahold of here. I have to do alot of dif oil changes cause I play in water and sand/glacial silt and mud and ice (sometimes all at once). I love lube locker differential gaskets. I generally by my gear oil by the 5 gal bucket its easier to use and yes I can go through it in about a year and a half. sometimes I do changes just cause I think that water got in and other times its a just in case; however I have found water in my diff multiple times.

 

A

alaskan_tatertot

NAXJA Forum User

Location

alaska

• Mar 11, 2009

• #5

kodiak eh stihl? looks across the water from kenai

 

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wim hoppenbrouwers

NAXJA Forum User

Location

Netherlands europe

• Mar 11, 2009

• #6

Hallo. I do prefer especially in summer and when the Jeep have to tow:Gear oil LS 85W140. In the rear of course extra 5% LS. :shhh:


"92 XJ

 

Last edited: Mar 11, 2009

bigalpha

Moderator

Location

Tucson, AZ

• Mar 11, 2009

• #7

I don't do any towing right now, and I have an open rear diff. I will stick with 80-90W for the rear.

Should I change the rear fluid to something heavier if I start towing? Let's say I tow 2k#.

 

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wim hoppenbrouwers

NAXJA Forum User

Location

Netherlands europe

• Mar 11, 2009

• #8

Quote:Should I change the rear fluid to something heavier if I start towing? Let's say I tow 2k#.

Yes. It is an advice from Chrysler in Germany. It is printed in the German Manual.

In German: Bei Anhangerbetrieb Getriebeol SAE 75W 140 Synthetic Gear Lubricant in der Hinterachse verwenden. Mit Trac-Lok Zusatzstoff 5%.:worship:

 

bigalpha

Moderator

Location

Tucson, AZ

• Mar 11, 2009

• #9

Whew, it's been years since I lived in Germany. I forgot how long the words were.

 

W

wim hoppenbrouwers

NAXJA Forum User

Location

Netherlands europe

• Mar 11, 2009

• #10

Haha. I shall translate it in Dutch maybe?

 

bigalpha

Moderator

Location

Tucson, AZ

• Mar 11, 2009

• #11

wim hoppenbrouwers said:

Haha. I shall translate it in Dutch maybe?

Click to expand...

Sure, but I don't think Google can translate Dutch, can it?