Recent Topics
Optimal Compression Ratio for 91 Octane Fuel
by NICAT. 09/25/18 02:01 PM
Anyone used Amsoil DZF 0w40 ?
by ofelas. 09/25/18 01:33 PM
No more Turo - What now?
by dogememe. 09/25/18 01:08 PM
Military small arms ammo
by Camprunner. 09/25/18 12:03 PM
Pennzoil must not be selling , OR ?
by Kjmack. 09/25/18 11:51 AM
New black car, light swirls and water spots
by Redright9. 09/25/18 11:37 AM
Rust Belt vs Sun Belt cars
by ZZman. 09/25/18 11:33 AM
Enginer rebuilder's view of GDI intake issues
by Brigadier. 09/25/18 11:09 AM
Oil for '84 Caddy w/HT-4100
by StillLearning. 09/25/18 10:41 AM
Interesting video of diff with clear cover
by mrdctaylor. 09/25/18 10:15 AM
The death of American footbal
by Brigadier. 09/25/18 10:01 AM
Tire leaking from bead/rim
by Brybo86. 09/25/18 09:39 AM
2000 4Runner 3.4L
by ka9mnx. 09/25/18 08:59 AM
VW 508 Spec 0w20 Updates?
by Zee09. 09/25/18 08:36 AM
Laptop Recommendations
by buster. 09/25/18 08:24 AM
Mac OSX Mojave - vid card requirements
by OVERKILL. 09/25/18 08:05 AM
Age of first drive
by madRiver. 09/25/18 08:02 AM
Newest Members
Peppz, Jfa02, ibsfusion, Fearcat707, Perseo
66069 Registered Users
Who's Online Now
109 registered members (14Accent, 2010Civic, 16HC, 2009Edge, 2004tdigls, 10 invisible), 1,541 guests, and 40 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics290,996
Posts4,854,018
Members66,069
Most Online3,590
Jan 24th, 2017
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Page 1 of 2 1 2
Transmission oil for a 47 non synchronized 4 speed #4728206
04/15/18 07:52 PM
04/15/18 07:52 PM
Joined: May 2015
Posts: 20
NJ
preaction Offline OP
preaction  Offline OP
Joined: May 2015
Posts: 20
NJ
I have a 47 Dodge power wagon with a 4 speed non synchronized 4 speed trans the shop manual calls for a 80w/140 oil. I have been reading some have been using a synthetic 50w oil as a replacement. I believe being a non syncro trans that a yellow metal compatible oil is not a concern so is it possible to get better performance from a modern 50w than the 80w/140 ?

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4728216
04/15/18 07:56 PM
04/15/18 07:56 PM
Joined: Dec 2012
Posts: 556
Cave City KY
jakewells Offline
jakewells  Offline
Joined: Dec 2012
Posts: 556
Cave City KY
just use any modern 80w90 or 75w140 i personally wouldn't use a 50 weight oil in the transmission.


1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A

1978 Chevy Nova 250 I6 Borg Warner T5
Rotella 10W40 Fram XG5

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4728238
04/15/18 08:19 PM
04/15/18 08:19 PM
Joined: Jun 2003
Posts: 17,376
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,376
Deplorable in apple valley, ca
Sae 50 would be close to what it used when new.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4728278
04/15/18 08:51 PM
04/15/18 08:51 PM
Joined: Jun 2013
Posts: 1,711
Virginia
mattwithcats Offline
mattwithcats  Offline
Joined: Jun 2013
Posts: 1,711
Virginia
Take a look ar Mobil 1 Delvac 50.

About 90 weight GL-4 gear oil...

https://www.mobil.com/English-US/Commerc...ission-Fluid-50


2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4728284
04/15/18 08:54 PM
04/15/18 08:54 PM
Joined: May 2015
Posts: 20
NJ
preaction Offline OP
preaction  Offline OP
Joined: May 2015
Posts: 20
NJ
The Delvac 50 was the product I saw being used in place of the 80w90. Its pricey too.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4728382
04/16/18 12:06 AM
04/16/18 12:06 AM
Joined: Jun 2002
Posts: 19,246
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,246
Iowegia - USA
This one of the rare cases in which I would recommend this for older transmissions:

http://www.crcindustries.com/products/api-gl-4-multi-purpose-gear-oil-1-gal-SL24239.html

I am not sure how your old seals would respond take to the seal conditioning of something such as Redline MT-90 or Amsoil MTG.


Reading is fundamental; understanding is not a given ability.
Re: Transmission oil for a 47 non synchronized 4 speed [Re: Chris142] #4728424
04/16/18 03:50 AM
04/16/18 03:50 AM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,088
New Jersey
Originally Posted By: Chris142
Sae 50 would be close to what it used when new.




Wouldnt hit the 140 requirement though unless the API gear oil ranges have shifted with time.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: JHZR2] #4728428
04/16/18 04:14 AM
04/16/18 04:14 AM
Joined: Sep 2015
Posts: 2,261
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,261
Malaysia
Originally Posted By: JHZR2


Wouldnt hit the 140 requirement though unless the API gear oil ranges have shifted with time.

Exactly.
An OEM xW140 of that era would've a [email protected]*C range from 320 cSt to 748 cSt.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: zeng] #4728469
04/16/18 06:28 AM
04/16/18 06:28 AM
Joined: Mar 2010
Posts: 1,406
USA
SOHCman Offline
SOHCman  Offline
Joined: Mar 2010
Posts: 1,406
USA
Originally Posted By: zeng
Originally Posted By: JHZR2


Wouldnt hit the 140 requirement though unless the API gear oil ranges have shifted with time.

Exactly.
An OEM xW140 of that era would've a [email protected]*C range from 320 cSt to 748 cSt.


So you are saying a 140 like this may work because the specs have changed over the years?

Edit: oops nevermind, I need more coffee coffee

Last edited by SOHCman; 04/16/18 06:30 AM.

I urge people not to wait 100K to change out the fluid in their transfer case units. -Kestas
Re: Transmission oil for a 47 non synchronized 4 speed [Re: SOHCman] #4728798
04/16/18 12:08 PM
04/16/18 12:08 PM
Joined: May 2015
Posts: 20
NJ
preaction Offline OP
preaction  Offline OP
Joined: May 2015
Posts: 20
NJ
Does this being a straight cut gear transmission make any difference ?

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4729181
04/16/18 06:54 PM
04/16/18 06:54 PM
Joined: May 2015
Posts: 20
NJ
preaction Offline OP
preaction  Offline OP
Joined: May 2015
Posts: 20
NJ
https://lucasoil.com/media/k2/galleries/369/10146_Syn50wtTrans_800x950.jpg This also was recommended but again its 50 weight.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: SOHCman] #4729194
04/16/18 07:03 PM
04/16/18 07:03 PM
Joined: Sep 2015
Posts: 2,261
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,261
Malaysia
Originally Posted By: SOHCman
Originally Posted By: zeng
Originally Posted By: JHZR2


Wouldnt hit the 140 requirement though unless the API gear oil ranges have shifted with time.

Exactly.
An OEM xW140 of that era would've a [email protected]*C range from 320 cSt to 748 cSt.


So you are saying a 140 like this may work because the specs have changed over the years?

Edit: oops nevermind, I need more coffee coffee

This StaLube ISO 460 gear oil fell under SAE xW140 of that era, and
It falls under modern day SAE xW140, therefore .....
absolutely yes , if OP wishes so. Coffee2

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4729200
04/16/18 07:08 PM
04/16/18 07:08 PM
Joined: Sep 2015
Posts: 2,261
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,261
Malaysia
Originally Posted By: preaction
Does this being a straight cut gear transmission make any difference ?

Straight cut gears has less severe sliding action, vis-a-vis high off-set hypoid gears.
Hence ,no difference here.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: zeng] #4729880
04/17/18 12:47 PM
04/17/18 12:47 PM
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Originally Posted By: zeng
Originally Posted By: preaction
Does this being a straight cut gear transmission make any difference ?

Straight cut gears has less severe sliding action, vis-a-vis high off-set hypoid gears.
Hence ,no difference here.
Easy application. Simple as it gets.

Re: Transmission oil for a 47 non synchronized 4 speed [Re: preaction] #4730268
04/17/18 06:33 PM
04/17/18 06:33 PM
Joined: May 2015
Posts: 20
NJ
preaction Offline OP
preaction  Offline OP
Joined: May 2015
Posts: 20
NJ
Thanks for all of your responses.

Page 1 of 2 1 2

BOB IS THE OIL GUY® Powered by UBB.threads™