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#4774422 - 06/01/18 12:43 PM 2014 Grand Cherokee differential fluid
RageOfFury Offline


Registered: 11/15/09
Posts: 299
Loc: Ottawa, Canada
I got ridiculously expensive quotes from various Jeep dealers in my area for "Mopar Gear and Axle Lubricant 75W-85". As such, I'm now looking at going with a 3rd party fluid brand.

The front and rear diffs on my Jeep call for Synthetic GL-5 75W-85. My Jeep doesn't have a LSD. What do you guys recommend fluid wise? I'm in Canada by the way if that makes any difference.

Thanks
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2014 Jeep Grand Cherokee Limited V6 4x4

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#4774450 - 06/01/18 12:58 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
Gimpy1 Offline


Registered: 08/24/17
Posts: 136
Loc: Displaced Texan in Mexico City
Any fully synthetic diff fluid from the major manufacturers should be fine. HOWEVER... most off the shelf (RP, Mobil1, Valvoline etc) gear oils have some percentage of friction modifier. Redline sells a fully synthetic gear oil that does NOT have any FM in it. Make sure you read the owners manual and see if you need any FM and which type to use, there is a "F" and a "G". You should be able to find most of these in Canada or possibly order them thru Amazon.

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#4774522 - 06/01/18 02:29 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
oldhp Offline


Registered: 06/28/12
Posts: 1687
Loc: USA
I would use any synthetic 75W90 gear oil. Mobil 1, Red Line, Valvoline, etc. Going up to 75W90 instead of 75W85 will not hurt a thing. Your differential's don't require friction modifiers but most synthetic gear oil have that in them, again won't hurt a thing.


Edited by oldhp (06/01/18 02:31 PM)
Edit Reason: addn'
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#4774544 - 06/01/18 03:01 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
timish Offline


Registered: 02/06/03
Posts: 127
Loc: Los Angeles
I owned a 2012 Summit with the ELSD and V8. Currently I own a 2016 Summit with the Ecodiesel and the ELSD.

I used Mobil1 75w-90 in both vehicles and had no problems at all. Works with non ELSD and ELSD axles just fine.

ATF4 in the Transfer Case.

Very simple and inexpensive to maintain these capable rigs.

Good luck.
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#4774723 - 06/01/18 05:47 PM Re: 2014 Grand Cherokee differential fluid [Re: oldhp]
zeng Offline


Registered: 09/01/15
Posts: 2215
Loc: Malaysia
Originally Posted By: oldhp
I would use any synthetic 75W90 gear oil.

+1

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#4774745 - 06/01/18 06:11 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
RageOfFury Offline


Registered: 11/15/09
Posts: 299
Loc: Ottawa, Canada
Thanks for the advice! I can easily get my hands on either of the following

Valvoline SynPower Full Synthetic Gear Oil 75W-90
Castrol Syntec Full Synthetic Gear Oil 75W-90

Leaning towards the Valvoline...thoughts?
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2014 Jeep Grand Cherokee Limited V6 4x4

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#4774771 - 06/01/18 06:32 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
hemitruck Offline


Registered: 03/18/11
Posts: 393
Loc: new jersey
I would use redline.

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#4774830 - 06/01/18 07:31 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
oldhp Offline


Registered: 06/28/12
Posts: 1687
Loc: USA
I put Valvoline 75W90 in my Jeep Sahara rear end. It has the factory posi clutch type differential with 3.73 gears, quiet as a church mouse.
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#4774886 - 06/01/18 08:35 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
zeng Offline


Registered: 09/01/15
Posts: 2215
Loc: Malaysia
Originally Posted By: RageOfFury
Thanks for the advice! I can easily get my hands on either of the following

Valvoline SynPower Full Synthetic Gear Oil 75W-90
Castrol Syntec Full Synthetic Gear Oil 75W-90

Leaning towards the Valvoline...thoughts?

I've no doubt this Valvoline 75W90 of [email protected]*C 100 cSt is a very robust oil.
However, I'm personally more inclined to Castrol Syntec 75W90 of [email protected]*C of 111 cSt never mind it's lower [email protected]*C of 15.0 cSt, typically in a differential application.
You won't go wrong with either though, in this desirable 'upgrade'.


Edited by zeng (06/01/18 08:36 PM)

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#4774983 - 06/01/18 10:14 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
BrianF Online   content


Registered: 02/25/15
Posts: 628
Loc: Sask, Canada
Check a local distributor for PetroCan or Mobil. I found the gear oil prices off the shelf at Cambodian Tire or Walmart were atrocious. north of 20$ a quart. If you have to buy at CC, check their Motomaster synthetic gear oils as they were around the 14$ a liter mark with taxes on sale. Their oils are either Shell or Citgo, which are top notch.

Out in the prairies I went to the local Co-op and got their full synthetic (group 4) 75w90 for about 8$ a liter all in for a 5 liter jug. I paid around the 9$ a liter all in for their 80w140 in a 20 liter pail. Canadian made and takes a beating.

Don't get ripped off!!
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#4775171 - 06/02/18 07:31 AM Re: 2014 Grand Cherokee differential fluid [Re: zeng]
RageOfFury Offline


Registered: 11/15/09
Posts: 299
Loc: Ottawa, Canada
Originally Posted By: zeng
Originally Posted By: RageOfFury
Thanks for the advice! I can easily get my hands on either of the following

Valvoline SynPower Full Synthetic Gear Oil 75W-90
Castrol Syntec Full Synthetic Gear Oil 75W-90

Leaning towards the Valvoline...thoughts?

I've no doubt this Valvoline 75W90 of [email protected]*C 100 cSt is a very robust oil.
However, I'm personally more inclined to Castrol Syntec 75W90 of [email protected]*C of 111 cSt never mind it's lower [email protected]*C of 15.0 cSt, typically in a differential application.
You won't go wrong with either though, in this desirable 'upgrade'.


I can also get Motomaster Full Synthetic 75W-90 (which I believe is made by Shell??). It has the following specs: Viscosity at 40C = 126 cSt, Viscosity at 100C = 16.7 cSt, Pour Point = -54C (-65F). Is that better or worse than Valvoline and Castrol?
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2014 Jeep Grand Cherokee Limited V6 4x4

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#4775743 - 06/02/18 07:55 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
mjoekingz28 Offline


Registered: 11/21/07
Posts: 3996
Loc: United States of America
Maybe parts and service would be more reasonable if the dealers made more than a hundred bucks per new vehicle sold.

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#4775752 - 06/02/18 08:08 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
zeng Offline


Registered: 09/01/15
Posts: 2215
Loc: Malaysia
Quote:
I can also get Motomaster Full Synthetic 75W-90 (which I believe is made by Shell??). It has the following specs: Viscosity at 40C = 126 cSt, Viscosity at 100C = 16.7 cSt, Pour Point = -54C (-65F). Is that better or worse than Valvoline and Castrol?

That Motomaster [email protected]*C of 126 cSt provides even thicker MOFT for stronger components protection, in relation to Valvo/Castrol above.
Your Cherookee differential would love it.
200,000-300,000 km down the road when some 75W85 user gets gear whines,this differential would still be happy then.


Edited by zeng (06/02/18 08:09 PM)

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#4777299 - 06/04/18 02:19 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
mike718 Offline


Registered: 10/26/14
Posts: 30
Loc: Virginia Beach, VA
I have a 2014 JGC and I used the Valvoline SynPower Full Synthetic Gear Oil 75W-90 on both front and rear diff with no issue.
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#4778236 - 06/05/18 02:20 PM Re: 2014 Grand Cherokee differential fluid [Re: RageOfFury]
OVERKILL Offline


Registered: 04/28/08
Posts: 36759
Loc: Ontario, Canada
I'd use the AMSOIL gear lube recommended for the application personally. That's what I intend on running in mine.
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