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paintref
Look, I see stars

join:2003-02-21
Houston, TX
Reviews:
·AT&T U-Verse

[Help] Change oil in rear diff or leave alone?

1995 Nissan Pathfinder SE 4WD. Bought this vehicle earlier this year.

I would like to change the oil in the rear diff as a preventative measure, but is it really necessary to if you do not use 4WD often?

Also, what is the recommendation on changing the oil in your diffs?



shdesigns
Powered By Infinite Improbabilty Drive
Premium
join:2000-12-01
Stone Mountain, GA
Reviews:
·Atlantic Nexus

According to the manual it should be done every 30k miles.

Seems awful low. Most are 100k these days.

Since the rear is always used it wont make a difference if you dont use 4WD.
--
Scott Henion

Embedded Systems Consultant,
SHDesigns home - DIY Welder



DeltaElite
We Dont Dial 911

join:2002-03-29
Tucker, GA
kudos:1
Reviews:
·AT&T Southeast
reply to paintref

Use a good Synthetic and change it while your thinking about it.

I just pulled the bed off of my 2000 Chevy pickup to change the fuel pump and low and behold there sat the pumpkin in plain sight for me too see.....209k miles on the oem fluid.

It was not nearly as nasty as I thought it would be.....Luckily I taped a magnet to the bottom when I bought the truck.....Lots of silver mud but no chunks!
--
Protect your right to keep and arm bears!



Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
kudos:18
reply to paintref

Change it all. Front diff, transfer case and rear diff.



shdesigns
Powered By Infinite Improbabilty Drive
Premium
join:2000-12-01
Stone Mountain, GA
Reviews:
·Atlantic Nexus

said by Doctor Olds:

Change it all. Front diff, transfer case and rear diff.

..and transmission fluid.

BTW, I did my rear diff on my Cherokee. 220k miles and oil did not look bad. I used synthetic blend, did not want to spend the $$ on the synthetic.
--
Scott Henion

Embedded Systems Consultant,
SHDesigns home - DIY Welder


mob
On the next level..
Premium
join:2000-10-07
Reviews:
·SureWest Internet

said by shdesigns:

said by Doctor Olds:

Change it all. Front diff, transfer case and rear diff.

..and transmission fluid.

Also check the seals for leaks, or places water can enter the system if you were to go off road.
--
Ich habe kein Mitleid - Me
You're a daisy if you do. - Doc Holliday
And as always, have nice day.

Beezel

join:2008-12-15
Las Vegas, NV
reply to paintref

If you change the rear diff oil make sure if it is a limited slip or posi trac, or locking rear end you put the friction additive in the oil.



Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
kudos:18

said by Beezel:

If you change the rear diff oil make sure if it is a limited slip or posi trac, or locking rear end you put the friction additive in the oil.

Or just buy it with the LSD additive already in the gear oil...
--
What’s the point of owning a supercar if you can’t scare yourself stupid from time to time?


fartness
computersoc dot com
Premium
join:2003-03-25
Look Outside
reply to paintref

2001 Ford Ranger with 165k miles, I just changed the differential fluid for the first time. Put in some top quality synthetic and it shifts and runs way smoother.

Changed the brake fluid and didn't notice anything.

Power steering, radiator and clutch fluid are next.


jeckler

join:2005-04-11
Mesa, AZ

2 recommendations

said by fartness:

I just changed the differential fluid for the first time. Put in some top quality synthetic and it shifts and runs way smoother.

I fail to see the correlation between the two. That's like me saying I changed my differential fluid and now I get better radio reception, lost 20 lbs and my teeth are whiter.


neonhomer
KK4BFN
Premium
join:2004-01-27
Edgewater, FL
reply to paintref

Change it. For the cost of the fluid, gasket, and time... it's cheap peace of mind.

I change the oil in my differentials, transfer case, and transmission around every 30k. If the axle tubes go underwater, I change the diff fluid. Same with the transfer case.

I usually use Mobil 1 synthetic gear oil, and just regular ATF+4 for the trans and transfer case.

So.. In summary... DO IT!
--
"F is for Fire that burns down the whole town...
U is for Uranium...... Bombs...
N is for NO SURVIVORS!!!!!" Sheldon Plankton

Keep Calm and Carry On



CylonRed
Premium,MVM
join:2000-07-06
Bloom County
reply to jeckler

said by jeckler:

said by fartness:

I just changed the differential fluid for the first time. Put in some top quality synthetic and it shifts and runs way smoother.

I fail to see the correlation between the two. That's like me saying I changed my differential fluid and now I get better radio reception, lost 20 lbs and my teeth are whiter.

Not to mention that diff fluid plays no part in shifting...
--
Brian

"It drops into your stomach like a Abrams's tank.... driven by Rosanne Barr..." A. Bourdain