Changed the differential fluid today, but.....

[DarricSS]

Originally Posted by Reeko

The only Mobil 1 I see on there website does not require additives.
http://www.mobiloil.com/USA-English/..._75W-90LS.aspx

From the link:

"In most applications, the addition of special LS (limited slip) additives is not required. For axles requiring the highest level of limited-slip performance, OEM specific LS additives can be added to this fluid."


Friction Modifier GM Part No 1052358 2.5 oz should be added to the Mobile 1 product. It's 2.5oz of piece of mind, costs like 4bucks.

[Reeko]

Originally Posted by DarricSS

From the link:

"In most applications, the addition of special LS (limited slip) additives is not required. For axles requiring the highest level of limited-slip performance, OEM specific LS additives can be added to this fluid."


Friction Modifier GM Part No 1052358 2.5 oz should be added to the Mobile 1 product. It's 2.5oz of piece of mind, costs like 4bucks.

That is basically saying the same that I have seen with other LS Diff fluids and with the GM Additive. If you still have chatter from the diff around turns, then you can add some (small amount) of the additive.

If you were to add 2.5oz of additive, you might have too much, causing the LS to slip too much. Thus preventing both tires from hooking up.

[Reeko]

Originally Posted by Reeko

That is basically saying the same that I have seen with other LS Diff fluids and with the GM Additive. If you still have chatter from the diff around turns, then you can add some (small amount) of the additive.

If you were to add 2.5oz of additive, you might have too much, causing the LS to slip too much. Thus preventing both tires from hooking up.

Mobil is pretty much saying the same thing that even Redline says.
This is from Redline's Product DataSheet......

If “chattering” occurs with any of these lubricants, Red Line Limited Slip Friction
Modifier can be used to eliminate the stick/slip action and reduce the noise. This additive should not be necessary in the
75W90 or the 80W140 Gear Oils, since they already contain this addtive, but in some units more is required. Too much friction

modifier can reduce the lockup in limited slip units, so it should only be used if needed.