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Former Allison Oils Engineer Back and Ready for Questions
11-21-2011, 02:50 PM
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#1
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Senior Member
Commercial Member
Join Date: Apr 2011
Posts: 128
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All,
I've decided to come back to IRV2 after taking a bit of a break. So, let me know what you need in the way of transmission fluid questions specific to Allison transmissions.
For those of you who weren't following before, I was the Transmission Fluids Engineer at Allison Transmission from 1990 until my retirement in 2009. I wrote the Allison TES-295 and TES-389 specifications and worked with BP for over 10 years to develop and approve TranSynd. I worked with the GM ATF Committee to review and approve DEXRON-IIE, DEXRON-III and DEXRON-VI products and also sat on the Engine Oil Review Committee for the SAE Lubricants Review Institute to review and approve engine oils for the US Army's tactical and combat vehicles.
__________________
Tom Johnson
Former Allison Transmission Fluids Engineer, "Mr. TranSynd"
President and Founder at JG Lubricant Services, LLC
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11-21-2011, 02:53 PM
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#2
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Senior Member
Workhorse Chassis Owner Winnebago Owners Club
Join Date: Oct 2002
Location: Way down yonder, below New Orleans
Posts: 3,958
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This is GREAT NEWS.....Welcome back, TOM!
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Itasca SC 2010 37F on W-24 WB248" stock + plug wires vent kit added.
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11-21-2011, 02:57 PM
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#3
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Senior Member
Join Date: May 2011
Location: Vancouver, WA
Posts: 4,282
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Glad to have you back!!!
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2002 Newmar Dutch Star 4090 ISC 350/1050 with Banks Kit, now 435/1200
Charter Good Sam Lifetime Member, FMCA f47302s
RV'ing since 1957, NRA Benefactor Life Member
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11-21-2011, 06:11 PM
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#4
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Junior Member
Join Date: Aug 2011
Posts: 10
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I haven't asked anything,only read, but really appreciate the info!
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11-21-2011, 09:08 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Sep 2011
Location: Alaska 6 months out of the year, as for the other 6, somewhere in the Lower 48
Posts: 2,629
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Good to see you are back.
__________________
US Navy Vet, Liberty Tree Member of Oath Keepers.org, NRA and VFW Life Member, AK EMT.
If you are coming to AK let me know. Love it here and love sharing AK with others.
2009 Safari Cheetah 40 SKQ
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11-21-2011, 09:35 PM
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#6
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Aug 2005
Location: Nashua, NH
Posts: 880
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Welcome back, Tom!
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Chris Beierl
2005 Winnebago Vectra 36RD
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11-21-2011, 09:56 PM
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#7
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Senior Member
Join Date: Jun 2010
Posts: 1,266
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Welcome back, it is great to have someone with your experience on Allison transmissions. The question I have is do older allison transmissions that were provided with Dexron III fluids have to be changed to the newer synthetic fluids? They are past warranty and many have lots of miles. I've changed mine but the question remains - is it necessary?
Thanks
Safe Travels
Bob
__________________
Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a Mini Cooper or Trike or CRV
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11-21-2011, 10:02 PM
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#8
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Senior Member
Workhorse Chassis Owner
Join Date: Jan 2002
Posts: 426
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I would like to see the answer to 1ciderdog's question, also. Thank you
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2003 Dolphin LX 6355 w/ W22 chassis
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11-21-2011, 11:04 PM
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#9
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Senior Member
Damon Owners Club Freightliner Owners Club
Join Date: Mar 2006
Location: North East Texas
Posts: 2,254
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Welcome back
__________________
USN Retired, Life time member of the DAV.
driving the short bus 4056 Tuscany
I pledge allegiance to the flag of the United States of America, and to the Republic for which it stands, one nation under God, indivisible, with liberty and justice for all.
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11-21-2011, 11:38 PM
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#10
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Senior Member
Ford Super Duty Owner
Join Date: Jan 2011
Posts: 592
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Welcome back. and yes I do have a question
When I was on vacation last year, out on I-70 in the Colorado mountains around dillon I saw some large flatbed trucks with weights permanatly bolted to the bed and even larger tractor trailers set up the same way and they had the "Allison" righ there on the doors.
I am sure these are Allsions R & D test vehicles.
Of course I am gonna ask how I can get employed there as a tech in the R&D department. I do have exp working with the R&D department at Crane Cams when I worked there years ago.
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94 F-700/24 foot U-haul box home built
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11-21-2011, 11:40 PM
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#11
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Senior Member
Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 993
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Hi Tom!!! Say, there's a guy over on another RV forum that posted a question to you and I noticed you hadn't replied. Got a little worried something may have happened to you so I'm glad to see you are doing good!
We need your input here for sure.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1
7.1 MPG based on fuel used over 60,000 miles
2000 LEXUS RX300 FWD 22MPG 4020 LBS
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11-22-2011, 02:28 AM
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#12
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: Sep 2007
Location: KAPOLEI, HAWAII AND VANCOUVER, WASHINGTON
Posts: 1,846
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tom,
welcome back.
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks
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11-22-2011, 06:15 AM
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#13
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Senior Member
Commercial Member
Join Date: Apr 2011
Posts: 128
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Quote:
Originally Posted by 1ciderdog
Welcome back, it is great to have someone with your experience on Allison transmissions. The question I have is do older allison transmissions that were provided with Dexron III fluids have to be changed to the newer synthetic fluids? They are past warranty and many have lots of miles. I've changed mine but the question remains - is it necessary?
Thanks
Safe Travels
Bob
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Bob,
It's not necessary but you'll just need to change it a lot more often and check it to be sure it hasn't lost viscosity. DEXRON-III fluids were good from an oxidation standpoint but not very good on keeping their viscosity. That's why I came out with the TES-295 specification for Allison. It kept (and even improved) the oxidation resistance and did away with the viscosity loss problem.
Problem is .... the GM DEXRON-III specification is obsolete so GM engineers no longer review them. So, they are old formulations and no one is looking over any changes that the oil companies make.
__________________
Tom Johnson
Former Allison Transmission Fluids Engineer, "Mr. TranSynd"
President and Founder at JG Lubricant Services, LLC
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11-22-2011, 06:23 AM
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#14
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Senior Member
Commercial Member
Join Date: Apr 2011
Posts: 128
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Quote:
Originally Posted by Mekanic
Welcome back. and yes I do have a question
When I was on vacation last year, out on I-70 in the Colorado mountains around dillon I saw some large flatbed trucks with weights permanatly bolted to the bed and even larger tractor trailers set up the same way and they had the "Allison" righ there on the doors.
I am sure these are Allsions R & D test vehicles.
Of course I am gonna ask how I can get employed there as a tech in the R&D department. I do have exp working with the R&D department at Crane Cams when I worked there years ago.
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Mekanic,
Yes, those are Allison R&D units. The weights are used to change vehicle inertia so they can simulate different vehicles and different loads using smaller trucks. You can search job openings at: Allison Transmission
__________________
Tom Johnson
Former Allison Transmission Fluids Engineer, "Mr. TranSynd"
President and Founder at JG Lubricant Services, LLC
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