Recent Topics
VW -- Now EU Sues Germany + 6 Countries
by Y_K
12/08/16 10:47 AM
Fuel Diaphragm Pump Question
by Red91
12/08/16 10:33 AM
Who makes a quality headlight harness?
by Ed_Flecko
12/08/16 10:11 AM
GM's new 9 speed 9T50
by supton
12/08/16 08:52 AM
MC 0w vs 5w
by AirgunSavant
12/08/16 08:42 AM
2017 Subaru WRX STI top-off oil
by tpattgeek
12/08/16 08:41 AM
FORD WSSM2C171 APPROVED OILS
by DWC28
12/08/16 08:40 AM
BMW E46 Electrical Problem
by ET16
12/08/16 08:37 AM
ATs and mountain(downhill)
by pandus13
12/08/16 08:36 AM
Could this be after effects of Ceratec?
by NycDito
12/08/16 07:27 AM
Why does Fram have less media?
by cmlind
12/08/16 07:25 AM
Say goodbye to CAFE & 0W20...
by dblshock
12/08/16 07:16 AM
Newest Members
1967ss, Aatwell86, stormgol, GreggDre, emmett442
59811 Registered Users
Who's Online
72 registered (05LGTLtd, 1JZ_E46, 4WD, 901Memphis, 1foxracing, 2016Accord, 4 invisible), 2005 Guests and 17 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
59811 Members
66 Forums
257998 Topics
4245105 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#2604352 - 04/19/12 09:21 PM What oil for a Ford with a Sterling rear axle?
Chris142 Offline


Registered: 06/05/03
Posts: 14507
Loc: apple valley, ca
This is on my New to me 87 F250. The owners manual does not give weights...Just a Ford part number.
_________________________
02 Wrangler Chevron 10w30
87 F250 napa 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40

Top
#2604385 - 04/19/12 09:51 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Jim_Truett Offline


Registered: 01/07/09
Posts: 214
Loc: San Diego, California
The 10.25" rear diff in '87 used 75w-90 synthetic according to my records.
_________________________
2008 F250 6.4 PowerStroke 37k
2005 Honda CR-V 150k
2005 Honda Pilot 222k
1963 Nova SS 83k
2013 Mahindra 3016HST 70hrs

Top
#2604413 - 04/19/12 10:20 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Bgallagher Online   content


Registered: 04/17/12
Posts: 2513
Loc: Boston, MA
How does the fluid look? You might want to run it for a short period with cheap Dino to flush it out before you go synthetic.
_________________________
2005 Chevy Equinox - 141k - Shell Rotella and Mobil M1201
2005 Chevy Malibu - 171k - STHM and ST9018
2015 GMC Terrain - 12k- Delco Dexos 1 and PF457G

Top
#2604433 - 04/19/12 10:45 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
RamFan Offline


Registered: 05/09/10
Posts: 1843
Loc: Illinois, U.S.A
Originally Posted By: Chris142
This is on my New to me 87 F250. The owners manual does not give weights...Just a Ford part number.


Just out of curiosity, which engine?

I had an '88 F250 XLT Lariat with the 7.5l V8 in it as my first vehicle. I miss it, wish I could buy it back and restore just so I could keep my first vehicle.
_________________________
06 Monte Carlo LT
+3.9l V6 - 178k - M1 0w30 - Fram Pro - OLM
16.5 CX-5 Touring
+2.5l I4 - 16k - Mobil Super 0w20 - Fram Ultra - OLM

Top
#2604436 - 04/19/12 10:47 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Chris142 Offline


Registered: 06/05/03
Posts: 14507
Loc: apple valley, ca
6.9 diesel with a 4 speed stickshift
_________________________
02 Wrangler Chevron 10w30
87 F250 napa 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40

Top
#2604546 - 04/20/12 05:12 AM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Roadkingnc Offline


Registered: 07/16/11
Posts: 720
Loc: NC USA
75w140 synthetic

Top
#2604774 - 04/20/12 12:02 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
Depends how it's used. Tow a lot, tow heavy,tow in hot weather, use a 140. A 75W140 syn is best because it will deliver the last loss sue to viscosity .Otherwise a good 90 grade is fine and saves you a little mpg. I have all the manuals for my '86, and here is what it calls out: Ford Spec ESA-M2C154-A , which was a 80W90 oil (-15F-100F). They called for a 85W140 in ambient temps +15F- over 100. Syn gear oils were virtually unknown then, so you can translate. FWIW, I run a 90 grade in my truck (the LE607 in the story below)

For To the Point info, go here: Diff Oil Temps
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

Top
#2604776 - 04/20/12 12:04 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Rob_Roy Offline


Registered: 10/26/08
Posts: 914
Loc: Northern, NY
My 10.25" pulls heavy loads in the summer, and plows snow on the winter. Amsoil 75w140 works great for me.
_________________________
2015 Subaru Legacy 3.6
2014 Subaru Outback 2.5
1999 Ford F350, V10 workhorse

Top
#2605122 - 04/20/12 06:45 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
Chris142 Offline


Registered: 06/05/03
Posts: 14507
Loc: apple valley, ca
I don't normally tow anything. Just going to use the truck to haul Prospecting equipment and maybe a quad out into the desert.
_________________________
02 Wrangler Chevron 10w30
87 F250 napa 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40

Top
#2605124 - 04/20/12 06:46 PM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
OVERKILL Online   content


Registered: 04/28/08
Posts: 32659
Loc: Ontario, Canada
The AMSOIL gear lube in 75w140 is a solid choice.
_________________________
2016 Durango Limited
2016 Grand Cherokee SRT

Top
#2765522 - 10/07/12 10:22 AM Re: What oil for a Ford with a Sterling rear axle? [Re: Chris142]
buck91 Offline


Registered: 04/17/12
Posts: 1929
Loc: West Michigan
Looking to refresh the rear did oil on my 99 f250. Same rear end manual specs 75w140 synthetic ... seems the jury is out on whether going to lighter 75w90 in a low/no towing situation is alright??
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

Top