Differential fluid requires no maintenance?
05-02-2009, 10:50 AM
#1
1st Gear Member
Thread Starter
Join Date: Jul 2008
Posts: 86
Differential fluid requires no maintenance?
According to my manual, the differential in our cars does not require service. Does this mean we do not need to change the fluid? I have 50k on my car and was going to change it. Should I leave it, or change it? Also, what fluid/oil weight does it need? Does it need a friction modifier as well? I have searched but have not found a for sure answer on this.
05-02-2009, 11:48 AM
#2
3rd Gear Member
Join Date: Sep 2006
Location: New Jersey
Posts: 735
It says you dont need to, but I did. My car was starting to peg leg all the time, so I figured I would try and see if a fluid change worked and it did. The old fluid had the consistency of water. I used RP 75w-140 and did not use friction modifier and it has burned 2 wheels every time. My rear was also chattering and this fixed that as well. I forget how much I used, I wanna say it was a little over 2 bottles of it.
05-02-2009, 11:52 AM
#3
4th Gear Member
Join Date: Aug 2007
Posts: 1,106
change that isht for sure man. get some redline in thurr.
..change the gears while your at it
if you use royal purple, redline, etc. you dont NEED friction modifier, because it already comes with it... however, i would add to it, so YES it would be smart to buy a bottle of friction modifier and use it.. it wont hurt anything at all and its better to be safe than sorry
..change the gears while your at it
if you use royal purple, redline, etc. you dont NEED friction modifier, because it already comes with it... however, i would add to it, so YES it would be smart to buy a bottle of friction modifier and use it.. it wont hurt anything at all and its better to be safe than sorry
05-02-2009, 06:54 PM
#5
5th Gear Member
Join Date: Jan 2006
Posts: 2,504
if i remember correctly, the fluid is good for 75K miles, could be more. but i changed mine because i was starting to get peg leg burnouts too and that brought it back for the time being. i used as little friction modifier as i could without getting chatter
05-02-2009, 07:53 PM
#8
6th Gear Member
Join Date: May 2007
Location: Columbia, MO
Posts: 6,347
05-02-2009, 08:31 PM
#10
6th Gear Member
Join Date: May 2007
Location: Columbia, MO
Posts: 6,347