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11-21-2011, 02:50 PM
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#1
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Senior Member
Commercial Member
Join Date: Apr 2011
Location: Avon, IN
Posts: 706
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Former Allison Oils Engineer Back and Ready for Questions
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
Join Date: Oct 2002
Location: Madison, MS
Posts: 10,527
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This is GREAT NEWS.....Welcome back, TOM!
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11-21-2011, 02:57 PM
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#3
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Glad to have you back!!!
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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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: 16
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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 Winnebago Owners Club
Join Date: Sep 2011
Posts: 7,469
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Good to see you are back.
__________________
US Navy Vet, Liberty Tree Member of Oath Keepers, NRA & VFW Life Member, Alaska EMT.
2009 Safari Cheetah 40 SKQ
2009 Winnebago Chalet 231CR
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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: 2,689
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Welcome back, Tom!
__________________
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
National RV Owners Club
Join Date: Jun 2010
Posts: 4,581
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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, dogs Tasha a Frenchie and Tiki a Skipperkey
SW OREGON 2005 34 foot DolphinLX
If towing: a bright red 2016 Mini Cooper on a tow dolly.
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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: 1,896
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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; 8.1L gas & Allison 1000
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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: 4,946
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Welcome back
__________________
USN Retired, Life time member of the DAV.
Enjoying the 2008 Damon Tuscany 4056, #3998 no your eyes are fine, there are really 6 slides
2022 F150 King Ranch or 2012 Edge toads
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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
Location: Kitts Hill, OH
Posts: 2,252
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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.
__________________
(RVM#26) THE U-RV 94 F-700/24 foot U-haul box home built RV
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11-21-2011, 11:40 PM
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#11
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,149
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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
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
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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
Posts: 2,976
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tom,
welcome back.
__________________
01 WINNEBAGO 35U W20.8.1L 5sp allison SW Wa,. Good Sam, SKP. RVM 198 AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. Michelins, TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '21MB GLA FWD on dolly 
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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
Location: Avon, IN
Posts: 706
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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
Location: Avon, IN
Posts: 706
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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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