Is it ok to use limited slip oil in non limited sl

[j454]

Hi; I'm wondering if it is ok to use a synthetic gear oil with the limited slip additive in it for the regular spider gear type of differentials?
I have a 1993 Jeep Grand Cherokee that came with towing package and the owners manual states to use a synthetic 75W 140 gear oil. Mine does not have the limited slip option.
The reason I ask is; the limited slip gear oil is all I have right now and wanted to use it for this Jeep rather than buy more. Plus I think I used the limited slip gear oil in the front and rear of my 2002 Yukon. My Yukon did come out with limited slip in the rear. Not thinking too clearly, I bought and used the same for the front too.
Thanks for any advise: John

 

[Bill in Utah]

As long as everything else is the same (IE correct weight) sure go ahead.

It will be just fine.
Bill

 

[oggb]

Yeah, it'll be fine.

 

[The motor guy]

I use it in mine when its not required.

 

[229]

Yes, but not vice-versa.

 

[97f150]

The super tech stuff from Wallys doesnt have the additive in it and is cheaper per quart in the horribly overpriced 75w140 variety. Just an option to consider. I see them locally for $12 a quart.

 

[JHZR2]

its fine. ive read that the add actually hardens the gear faces a bit which is a plus.

 

[j454]

Thanks so much for your quick responses. I really just needed to add to the rear that was low.
I heard a horror story from a friend telling me how someone he
knew let one run completely dry.... So I thought I'd check mine out. It just needed some to top it off. I think I might go to WM and get their Super Tech synthetic gear oil for a future change.
Being I'm not towing with this vehicle, I'm thinking of maybe dropping from the 75W140 to a 75W90. Do you think that would be ok?

 

[229]

75W140 only.

 

[j454]

Thanks again for the replies, I do appreciate it

75W140 it will be then....

 

[Jim Allen]

Originally Posted By: JHZR2
its fine. ive read that the add actually hardens the gear faces a bit which is a plus.


Interesting! Read where? Would like to follow the thread.

 

[KCJeep]

I've used the ST 75w140 in a couple Jeeps, no issues so far, but I've since found the Valvoline at Autozone for only a dollar more, so I'll be using that next time around.

 

[j454]

Thanks to all of you, now I can make an informed decision.
Take care: John

 

[Ken2]

Quote:
I really just needed to add to the rear that was low.
Why was it low? Where did the oil go? If it is leaking anywhere except a very slow gasket leak or very slow pinion seal leak, find and fix the leak. Do not make a posting asking which gear oil is suitable for a leak on brakes....

 

[j454]

Mine was a little low due to seepage over a long period of time. It is likely overdue for a clean out and refill...
The one my friend was telling me about that ran dry......
I don't know what happened on that one.