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Comparison of 5 oils for Dodge Diesel manual trans #4061126
04/07/16 10:25 AM
04/07/16 10:25 AM
Joined: May 2005
Posts: 816
Ozark Mountains
callbay Offline OP
callbay  Offline OP
Joined: May 2005
Posts: 816
Ozark Mountains
http://www.carbonitecummins.com/Documents/Trans%20Oil%20Comparison.pdf

Very interesting study.

My son has a 2008 5500 Dodge pickup, 6 speed manual trans. with about 105,000 miles on it and tows extremely heavy loads like a dozer or a backhoe.

What do you guys think?

Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061139
04/07/16 10:34 AM
04/07/16 10:34 AM
Joined: May 2014
Posts: 1,429
quebec canada
yvon_la Offline
yvon_la  Offline
Joined: May 2014
Posts: 1,429
quebec canada
so even gl-4 have phosphore? might be better to put tes 295 with an allison numnber in a gl-4 then ? last i checked the whole point of gl-4 is to not have phosphore! ty for the heads up ! awsome job! men i almost baught the 50 ! no wonder allison supply a special number to those that pass the tes 295 ! test . i was laughing it off , but look like its a nightmare to pass said test


Truck driver
Nissan versa note s 2014 total classic 5w30(qc.ca) drivework oil filter
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061144
04/07/16 10:36 AM
04/07/16 10:36 AM
Joined: Sep 2015
Posts: 3,861
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,861
Connecticut
Wow, quite the range of viscosities and add packs for the same transmission. The visc ranges from 7.4 to 30! A factory trans that comes with ATF+4 (visc 7.4) and a weaker add pack. A good debate over thin, thick, and very thick. I wouldn't have expected a Tan of 4.7 on the Pennz synchromesh.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061177
04/07/16 11:25 AM
04/07/16 11:25 AM
Joined: Sep 2015
Posts: 2,259
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,259
Malaysia
Mobil Trans SHC DC and M Delvac Trans Fluid 50.

The other 3 .. no go.

Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: yvon_la] #4061223
04/07/16 12:11 PM
04/07/16 12:11 PM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline
440Magnum  Offline
Joined: Feb 2009
Posts: 8,776
Texas
Originally Posted By: yvon_la
last i checked the whole point of gl-4 is to not have phosphore!


No.

The reason to run GL-4 (or GL-3 if you can even find it) rather than a GL-5 oil in a manual transmission is to eliminate SULPHUR which corrodes brass/bronze "yellow" metals commonly found in bushings and synchronizers. Not Phosphorous.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061229
04/07/16 12:13 PM
04/07/16 12:13 PM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline
440Magnum  Offline
Joined: Feb 2009
Posts: 8,776
Texas
I'd like to see how some of the other manual trans boutique lubes compare- Redline MT-90 or RP Synchromax, for example.

But then trans fluid is neither replaced often, or likely to need frequent top-offs. If it were me, I'd just order the Getrag-recommended gear oil or the almost identical Delvac product.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061306
04/07/16 01:19 PM
04/07/16 01:19 PM
Joined: Mar 2004
Posts: 20,749
Upstate NY
Donald Online content
Donald  Online Content
Joined: Mar 2004
Posts: 20,749
Upstate NY
I would use Amsoil ATF.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4061713
04/07/16 08:15 PM
04/07/16 08:15 PM
Joined: Jun 2002
Posts: 19,230
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,230
Iowegia - USA
Assuming the article is correct, it appears to me the two fluids that meet the MB specs are the MobilTrans SHC DC and the Mobil Delvac Synthetic Transmission Fluid 50, which are pretty much alike and suspect they are the same formulation.

No way does the ATF+4, the Pennzoil Synchromesh and nor would Gorilla Juice meet specs.

Last edited by MolaKule; 04/07/16 08:16 PM.

Reading is fundamental; understanding is not a given ability.
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4063963
04/10/16 03:46 AM
04/10/16 03:46 AM
Joined: May 2012
Posts: 5,363
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,363
Fort Lauderdale, FL
The Mercedes G56 was in use for years before it ever saw a Ram.

It also was never filled with ATF or anything like it before Chrysler laid hands on it.

As such, I do not use ATF or anything like it in my G56.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4064037
04/10/16 07:00 AM
04/10/16 07:00 AM
Joined: May 2008
Posts: 197
Alberta Canada
Dale_Knight Offline
Dale_Knight  Offline
Joined: May 2008
Posts: 197
Alberta Canada
Couldn't find a voa or uoa of Ford XT-M5-QS MTF but wondering if it would be effective.

https://www.fcsdchemicalsandlubricants.c...ion%20Fluid.pdf


2003 Rav4 manual 4WD 112K miles
Maxlife semisyn 5W30 + 1 quart 5W40 Redline euro / Fram Ultra
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: Dale_Knight] #4064108
04/10/16 08:26 AM
04/10/16 08:26 AM
Joined: Sep 2015
Posts: 2,259
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,259
Malaysia
Originally Posted By: Dale_Knight
Couldn't find a voa or uoa of Ford XT-M5-QS MTF but wondering if it would be effective.
https://www.fcsdchemicalsandlubricants.c...ion%20Fluid.pdf


I wouldn't consider the above if given a choice , and prefer Mobil Trans SHC DC and M Delvac Trans Fluid 50 for its higher operating viscosity and MOFT protection. blush

Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: callbay] #4064508
04/10/16 02:53 PM
04/10/16 02:53 PM
Joined: Feb 2014
Posts: 159
NY
Rendezvous Offline
Rendezvous  Offline
Joined: Feb 2014
Posts: 159
NY
The only issue is the Mobil Trans SHC DC is impossible to find. It might not even be made anymore. The Delvac does work pretty well in its place once it has warmed up. I drained the ATF out of my G56 pretty much right away and have tried a few different gear oils. My favorite and what I am currently using is Torco RTF. It has given me the best all around performance.

Last edited by Rendezvous; 04/10/16 02:54 PM.
Re: Comparison of 5 oils for Dodge Diesel manual trans [Re: Rendezvous] #4470199
07/25/17 04:21 PM
07/25/17 04:21 PM
Joined: Jun 2017
Posts: 1
Louisiana
Tronbo Offline
Tronbo  Offline
Joined: Jun 2017
Posts: 1
Louisiana
I also use Torco RTF. I have a 2006 2500 CTD and switched to this at 59,000 miles. I have changed it once at 100,000 miles. The truck now has a little over 140,000 miles on it with no issues.


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