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#4569877 - 11/10/17 12:10 PM Between these three, what oil?
rollinpete Offline


Registered: 03/20/17
Posts: 461
Loc: West Ma.
Hi Bitog community...
I want to change out the rear differential oil on my suv that's in my sig, I doubt it's ever been changed....The book says 80w 90 premium oil...I need 5.5 pints...Can I get away with using...

#1 one of these?-https://www.walmart.com/ip/Super-Tech-80W-90-High-Performance-Gear-Oil-1-Gallon/16795067
or
#2 three of these?-https://www.walmart.com/ip/Super-Tech-75W-90-Syn-Blend-Gear-Oil-1-Quart/16795248
or
#3 three of these?-https://www.amazon.com/Genuine-Ford-XY-80W90-QL-Premium-Lubricant/dp/B000NU1D3U

Can I use the cheapest one ? Is there much of a difference? Or maybe another. What would you use? The truck runs Great, and I plan on keeping it for a long time, I was ready to buy the 75w90 syn blend but am wondering if the weight of the oil would be okay...I'm trying to go the cheapest route... Thanks!




Edited by rollinpete (11/10/17 12:12 PM)
_________________________
Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
Penn. Plat. HM 5w30
Fram xg8a, Fram CA8141

I like my oil slippery (Please).


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#4569886 - 11/10/17 12:17 PM Re: Between these three, what oil? [Re: rollinpete]
Linctex Offline


Registered: 12/31/16
Posts: 6160
Loc: Waco, TX
I think cheapest is fine.

The Explorer Sport should be a 8.8" rear, which can handle 500HP pretty reliably.

I don't think the ol' 4.0 is working it all that hard grin
_________________________
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(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4569918 - 11/10/17 12:57 PM Re: Between these three, what oil? [Re: rollinpete]
Chris142 Offline


Registered: 06/05/03
Posts: 16835
Loc: Deplorable in apple valley, ca
I think that requires a full synthetic.
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
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#4569933 - 11/10/17 01:12 PM Re: Between these three, what oil? [Re: rollinpete]
BJD78 Offline


Registered: 08/05/17
Posts: 493
Loc: Nebraska
Some Ford rear diffs also require a couple of ounces of ford friction modifier in addition to the 80w90 gear oil. I would check with a ford shop, perhaps they have a gear oil that ha the friction stuff already mixed in. any of those 3 would do the job as well as the other.
_________________________
2010 Forester:122K
2009 Sonata :189K
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OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.

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#4569946 - 11/10/17 01:28 PM Re: Between these three, what oil? [Re: rollinpete]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11970
Loc: N.H, U.S.A.
GOLDEN RULE: Dino oil in the rear.
Why don't you use Pennzoil or Valvoline or Mobil HD.

If it says 80w Id. stick with 80W.


But now Here come the axle seal leaks.
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4569950 - 11/10/17 01:32 PM Re: Between these three, what oil? [Re: rollinpete]
RedOakRanch Offline


Registered: 11/10/13
Posts: 846
Loc: Central Coast California
If you have AutoZone get the Delo 75w90 full synthetic for $5.99/qt. It's been priced wrong for a few years.
_________________________
1994 Ford Crown Vic 206k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 178k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 56k-M1 EP 0w20 $2/qt

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#4569994 - 11/10/17 02:27 PM Re: Between these three, what oil? [Re: rollinpete]
LoneRanger Offline


Registered: 07/02/07
Posts: 4060
Loc: Midwest USA
Follow the owner manual recommendation. You'll get a thousand different recommendations here. Just follow owner manual recommendation and you have to deal with the Paralysis of Analysis that can set in with so many options laid out before you.
_________________________

'09 Subaru Forester ...................(QSED DEXOS1 5W30)
'16 Moto Guzzi Stelvio 1200 .....(ENI i-Ride PG 10W60)

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#4570115 - 11/10/17 04:53 PM Re: Between these three, what oil? [Re: RedOakRanch]
nthach Offline


Registered: 01/02/04
Posts: 3909
Loc: California
Originally Posted By: RedOakRanch
If you have AutoZone get the Delo 75w90 full synthetic for $5.99/qt. It's been priced wrong for a few years.

+1, it's a really good for what it is.

I think you'll be fine with either option, but do check if the diff calls for any FM additive to be added. If the diff hasn't been touched there's a small stamped metal tag that says if FM or a specific weight is needed. If not, on the door or B-pillar certification label there's a axle code and you can see if it's a regular diff or limited slip based on that code here: http://www.blueovaltrucks.com/tech-artic...e-door-sticker/

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#4570195 - 11/10/17 06:07 PM Re: Between these three, what oil? [Re: rollinpete]
zeng Offline


Registered: 09/01/15
Posts: 2189
Loc: Malaysia
Yes, go for the ST 80W90 for its higher [email protected]*C (data not available unfortunately), never mind it's mineral.
[email protected]*C of modern day 75W90 generally does not comply with the original requirements in an 80W90 specified in your (pre-1999) book , which typically varies from [email protected]*C 150 cSt to 320 cSt.
JMHO.

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#4570211 - 11/10/17 06:29 PM Re: Between these three, what oil? [Re: rollinpete]
blupupher Offline


Registered: 08/27/04
Posts: 4426
Loc: Katy, Republic of Texas
Where do you see that you need 80w-90?

The copy online I found shows you need 75w-140 synthetic fluid since you have the 4.0, and if you have a limited slip, you need to make sure you add friction modifier (even if the fluid you use says it has it, the Ford LS wants more than what is in the bottles).

I have Supertech 75w-140 in my truck right now, Valvoline 75w-140 in my brother in laws F150, and have used Lucas 75w-140. I have always added the Motorcraft XL-3 LS fluid to them (they all have LS).
Just use the cheapest one you can find (Valvoline at AAP with a coupon code can be had for cheap depending on the code).
_________________________
1994 Honda VT1100C: Peak 15w-40/TG/2500 mile OCI
2002 Ford F150: GTX HM 5w-20/EcoGard Syn/1yr OCI
2012 Scion xB: QSUD 0w-20/CQ Blue/5k OCI


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#4570241 - 11/10/17 07:05 PM Re: Between these three, what oil? [Re: blupupher]
ford46guy Offline


Registered: 06/01/13
Posts: 525
Loc: Albany, NY
Originally Posted By: blupupher
Where do you see that you need 80w-90?

The copy online I found shows you need 75w-140 synthetic fluid since you have the 4.0, and if you have a limited slip, you need to make sure you add friction modifier (even if the fluid you use says it has it, the Ford LS wants more than what is in the bottles).

I have Supertech 75w-140 in my truck right now, Valvoline 75w-140 in my brother in laws F150, and have used Lucas 75w-140. I have always added the Motorcraft XL-3 LS fluid to them (they all have LS).
Just use the cheapest one you can find (Valvoline at AAP with a coupon code can be had for cheap depending on the code).


When these trucks came out in the mid-90s they were speced for 80W-90

Now (late 90s) Ford changed that spec to 75W150, especially if there is a limited slip.

The Valvoline fluid needs the friction modifier. I have cobra clutches in the explorer and it was making noise. It is now perfectly quiet.
_________________________
95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30

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#4570256 - 11/10/17 07:21 PM Re: Between these three, what oil? [Re: rollinpete]
01rangerxl Offline


Registered: 04/08/06
Posts: 9252
Loc: Birmingham, AL
Many 8.8s call for 75W140, but if you have an open (non-LS) diff, 80W90 should be fine for that year. I use cheap 80W90 in my 1994 open 8.8. That said, 75W140 is fine to use in all 8.8s.
_________________________
2002 Ford Ranger XLT | 3.0 V6 / 5-Speed Automatic / 2WD | 211K miles
1994 Ford Ranger STX | 4.0 V6 / 5-Speed Manual / 4X4 | 198K miles

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#4570265 - 11/10/17 07:28 PM Re: Between these three, what oil? [Re: ford46guy]
zeng Offline


Registered: 09/01/15
Posts: 2189
Loc: Malaysia
Originally Posted By: ford46guy
Originally Posted By: blupupher
Where do you see that you need 80w-90?

The copy online I found shows you need 75w-140 synthetic fluid since you have the 4.0, and if you have a limited slip, you need to make sure you add friction modifier (even if the fluid you use says it has it, the Ford LS wants more than what is in the bottles).

I have Supertech 75w-140 in my truck right now, Valvoline 75w-140 in my brother in laws F150, and have used Lucas 75w-140. I have always added the Motorcraft XL-3 LS fluid to them (they all have LS).
Just use the cheapest one you can find (Valvoline at AAP with a coupon code can be had for cheap depending on the code).


When these trucks came out in the mid-90s they were speced for 80W-90

Now (late 90s) Ford changed that spec to 75W150, especially if there is a limited slip.

The Valvoline fluid needs the friction modifier. I have cobra clutches in the explorer and it was making noise. It is now perfectly quiet.


Ford 75W140 has a KV @40*C of 191 cSt ..........falling within the range of 150 cSt to 320 cSt.
The above statements from blupupher and ford46guy make perfect sense , indicating engineers from Ford holds on to their grounds vis-a-vis marketing and/or finance guys ...... for now.
Not sure if penalty against CAFE (non-)compliance has been incurred though.


Edited by zeng (11/10/17 07:31 PM)

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#4570328 - 11/10/17 09:07 PM Re: Between these three, what oil? [Re: ARCOgraphite]
Gebo Offline


Registered: 09/18/02
Posts: 2127
Loc: VA
Originally Posted By: ARCOgraphite
GOLDEN RULE: Dino oil in the rear.
...


Splain it, please. Or if I should already have read it here, I ask for forgiveness.
_________________________
'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
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#4570559 - 11/11/17 07:17 AM Re: Between these three, what oil? [Re: blupupher]
rollinpete Offline


Registered: 03/20/17
Posts: 461
Loc: West Ma.
Originally Posted By: blupupher
Where do you see that you need 80w-90?

The copy online I found shows you need 75w-140 synthetic fluid since you have the 4.0, and if you have a limited slip, you need to make sure you add friction modifier (even if the fluid you use says it has it, the Ford LS wants more than what is in the bottles).

I have Supertech 75w-140 in my truck right now, Valvoline 75w-140 in my brother in laws F150, and have used Lucas 75w-140. I have always added the Motorcraft XL-3 LS fluid to them (they all have LS).
Just use the cheapest one you can find (Valvoline at AAP with a coupon code can be had for cheap depending on the code).

page 224 http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/97expog1e.pdf

I have the non limited slip differential... door sticker says the axle is 41



Edited by rollinpete (11/11/17 07:18 AM)
_________________________
Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
Penn. Plat. HM 5w30
Fram xg8a, Fram CA8141

I like my oil slippery (Please).


Top
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