RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Allison Transmission Forum
Click Here to Login

Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
View Poll Results: Are you currently running oil analysis on your engine or your Allison transmission?
Yes. I'm a believer in oil analysis! 223 35.06%
Not at this time but I might if I knew more about it. 358 56.29%
No. I think it costs too much. 39 6.13%
No. I don't believe in it. I think it's pure "bunk" ! 20 3.14%
Multiple Choice Poll. Voters: 636. You may not vote on this poll

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-07-2011, 10:10 AM   #57
Senior Member
 
JoeT's Avatar
 
Join Date: Feb 2005
Posts: 486
Tom, thanks so much for you contribution to this forum.
My question is:
I have some Transynd left from my last fluid change three years ago. I'm due to change my filters. Will the left over Transynd still be good to replace the lost fluid when I change the filters? I don't know the shelf life of Transynd that has been opened.
__________________

__________________
Joe & Loretta Fischer
2017 Roadtrek Zion SRT
JoeT is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-08-2011, 05:39 AM   #58
Senior Member
 
hzjcm8's Avatar
Commercial Member
 
Join Date: Apr 2011
Location: Avon, IN
Posts: 624
Send a message via AIM to hzjcm8 Send a message via MSN to hzjcm8 Send a message via Yahoo to hzjcm8
Quote:
Originally Posted by JoeT View Post
Tom, thanks so much for you contribution to this forum.
My question is:
I have some Transynd left from my last fluid change three years ago. I'm due to change my filters. Will the left over Transynd still be good to replace the lost fluid when I change the filters? I don't know the shelf life of Transynd that has been opened.
Joe,

No problem. The shelf life is at least 10 years.

Happy motoring !!!
__________________

hzjcm8 is offline   Reply With Quote
Old 05-19-2011, 10:48 AM   #59
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,569
Tom,

Thanks for your generous input of time and expertise on this forum.

I have a fluid related question about heat rejection but this may not be in your field. On a couple of other forums that I participate in, there have been a number of instances of the transmission fluid cooler, which is internal to the engine radiator and immersed in engine coolant, failing. When it fails both the engine cooling system and the transmission are cross contaminated. This appears to be catastrophic to the transmission & requires a complete rebuild.

My question is, can a transmission cooler external to the radiator provide enough cooling capacity without being so big that it's not practical? The coolant immersed design appears to be common in the diesel pusher business but appears to be a serious weakness.

Thanks again,
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is offline   Reply With Quote
Old 05-19-2011, 05:58 PM   #60
Junior Member
 
Join Date: May 2011
Posts: 1
Mr. Transynd,
Have a '03 coach w/ a Allison 3000, trany oil changed at 35K w/ Transynd, now have 80K mi. Is it OK to go back to the Dextron or what?
Thanks,
__________________
TN Revolution
kbeseman is offline   Reply With Quote
Old 05-19-2011, 06:02 PM   #61
Senior Member
 
Oemtech's Avatar
 
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 4,334
Send a message via AIM to Oemtech
Quote:
Originally Posted by kbeseman View Post
Mr. Transynd,
Have a '03 coach w/ a Allison 3000, trany oil changed at 35K w/ Transynd, now have 80K mi. Is it OK to go back to the Dextron or what?
Thanks,
I would have it tested just for grins.. But, me I would do new filter/filters and new Transynd fluid.
__________________
Dale
AKA - Oemy
Oemtech is offline   Reply With Quote
Old 05-19-2011, 07:54 PM   #62
Senior Member
 
AFChap's Avatar
 
Winnebago Owners Club
Spartan Chassis
Join Date: Aug 2002
Location: ...hopefully on the road!
Posts: 4,907
Quote:
Have a '03 coach w/ a Allison 3000, trany oil changed at 35K w/ Transynd, now have 80K mi. Is it OK to go back to the Dextron or what?
Don't see why you could not go back to Dexron. My Allison has a bit over 60k on it. I don't use synthetics as I see no advantage to them for our use ...and the only vehicle I have owned that had sythentics in it had a total rear end failure way earlier than any dyno-lubed vehicle I have ever owned.
__________________
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad
AFChap is offline   Reply With Quote
Old 05-19-2011, 07:59 PM   #63
Senior Member
 
hzjcm8's Avatar
Commercial Member
 
Join Date: Apr 2011
Location: Avon, IN
Posts: 624
Send a message via AIM to hzjcm8 Send a message via MSN to hzjcm8 Send a message via Yahoo to hzjcm8
Quote:
Originally Posted by Steve Ownby View Post
Tom,

Thanks for your generous input of time and expertise on this forum.

I have a fluid related question about heat rejection but this may not be in your field. On a couple of other forums that I participate in, there have been a number of instances of the transmission fluid cooler, which is internal to the engine radiator and immersed in engine coolant, failing. When it fails both the engine cooling system and the transmission are cross contaminated. This appears to be catastrophic to the transmission & requires a complete rebuild.

My question is, can a transmission cooler external to the radiator provide enough cooling capacity without being so big that it's not practical? The coolant immersed design appears to be common in the diesel pusher business but appears to be a serious weakness.

Thanks again,
Steve,

You're right, it's not really in my field of study. But, I don't see why you couldn't do it. It would definitely need an independent fan though. I know that at one time, Allison had an "Integral Cooler" design but I'm not sure of the performance.

Sorry, but that's all I know about this subject.
hzjcm8 is offline   Reply With Quote
Old 05-19-2011, 08:02 PM   #64
Senior Member
 
hzjcm8's Avatar
Commercial Member
 
Join Date: Apr 2011
Location: Avon, IN
Posts: 624
Send a message via AIM to hzjcm8 Send a message via MSN to hzjcm8 Send a message via Yahoo to hzjcm8
Quote:
Originally Posted by kbeseman View Post
Mr. Transynd,
Have a '03 coach w/ a Allison 3000, trany oil changed at 35K w/ Transynd, now have 80K mi. Is it OK to go back to the Dextron or what?
Thanks,
Kbeseman,

There's no problem switching back and forth between TranSynd and DEXRON-III (if you can find one). However, I'm not sure why you'd want to do that given the long drain intervals and good chemical and physical stability of TranSynd. So, why do you want to switch back?

Also, what makes you think you have to change the fluid at all? The TranSynd should be good for 300,000 miles.
hzjcm8 is offline   Reply With Quote
Old 05-19-2011, 08:11 PM   #65
Senior Member
 
hzjcm8's Avatar
Commercial Member
 
Join Date: Apr 2011
Location: Avon, IN
Posts: 624
Send a message via AIM to hzjcm8 Send a message via MSN to hzjcm8 Send a message via Yahoo to hzjcm8
Smile

Quote:
Originally Posted by AFChap View Post
Don't see why you could not go back to Dexron. My Allison has a bit over 60k on it. I don't use synthetics as I see no advantage to them for our use ...and the only vehicle I have owned that had sythentics in it had a total rear end failure way earlier than any dyno-lubed vehicle I have ever owned.
AFChap,

What do you pay for a transmission fluid change? How often do you change the fluid? Are you doing oil analysis to determine end of fluid life? I can tell you that not all synthetics are good. Some will still shear down (lose viscosity over time). I personally tested TranSynd for 10 years in city buses with retarders (Allison B400R and B500R transmissions). We also ran it in a bus for 100,000 miles and then ran a 2000 hour durability on an Allison 1000 Series transmission with no problems using the used TranSynd.

It's pretty much "bullet proof". With the ultra-long life and stability, I'm not sure why you're not using it even at the high price. The price is easily offset by the cost of the oil changes over the life of the vehicle.

Please keep in mind that I'm good with you doing whatever you want. Either fluid is OK (TES-389/DEXRON-IIIH or TES-295) ..... it's just a matter of fluid life and corresponding drain intervals.
hzjcm8 is offline   Reply With Quote
Old 05-25-2011, 12:33 AM   #66
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Winnebago Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 35,243
Quote:
Originally Posted by hzjcm8 View Post
I think we changed over to TranSynd in the factory in January of 1999. Before that we used DEXRON-III GM factory fill from Petro-Canada.
The problem is that when the transmission was installed in a chassis the builder may have used Dexron to refill it. That's what happened to my 2000 and 2002 Newmar Dutch Stars. Then I had to go through the two drain/filter change/refill cycle.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 05-25-2011, 05:03 AM   #67
Administrator in Memoriam
 
Route 66's Avatar


 
Newmar Owners Club
Retired Fire Service RVer's
Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,909
Quote:
Originally Posted by Mr_D View Post
The problem is that when the transmission was installed in a chassis the builder may have used Dexron to refill it. That's what happened to my 2000 and 2002 Newmar Dutch Stars. Then I had to go through the two drain/filter change/refill cycle.
Correct. Don't know why they would do that, but they did.
__________________
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP

Route 66 is offline   Reply With Quote
Old 05-25-2011, 10:18 AM   #68
Senior Member
 
AFChap's Avatar
 
Winnebago Owners Club
Spartan Chassis
Join Date: Aug 2002
Location: ...hopefully on the road!
Posts: 4,907
Quote:
What do you pay for a transmission fluid change? How often do you change the fluid? Are you doing oil analysis to determine end of fluid life?
My records say 2 year change interval (anywhere from 8-22k miles) at cost $240-$290. I am not doing any oil analysys.

Quote:
Transynd ...It's pretty much "bullet proof". With the ultra-long life and stability, I'm not sure why you're not using it even at the high price.
My '02 Spartan chassis came with DexronIII. If it came with Transynd I most likely would be using it. As indicated before, my experience with synthetics (very limited, yes) has not been good. On the other hand, dino oils have served me very well.
__________________
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad
AFChap is offline   Reply With Quote
Old 05-26-2011, 03:29 AM   #69
Senior Member
 
monarchman53's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: May 2010
Location: Eyota MN
Posts: 138
Blog Entries: 1
My '03 Allison 1000 has 25000 miles on it and I would like to change it over to TranSynd. I keep hearing about "the two change change". I understand the principal but am not sure of the process. How far do I need to drive it after the initial change before draining and filling the second time. Also do I need to use two filters (one for each change) or one? If one, do I change at first or second fill?
Thanks,
Rod
__________________
2004 Adventurer W-22 8.1 35u Banks power pack, Brazel ultra trac rear trac bar, Koni fsd, Blue Ox Alpha towing '06 HHR
monarchman53 is offline   Reply With Quote
Old 05-26-2011, 04:23 AM   #70
Senior Member
 
DAN L's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Sep 2007
Posts: 2,900
Quote:
Originally Posted by monarchman53 View Post
My '03 Allison 1000 has 25000 miles on it and I would like to change it over to TranSynd. I keep hearing about "the two change change". I understand the principal but am not sure of the process. How far do I need to drive it after the initial change before draining and filling the second time. Also do I need to use two filters (one for each change) or one? If one, do I change at first or second fill?
Thanks,
Rod
do you store your moho in the winter?
i left my moho sit unstarted for a couple of months. most of the torque converter oil drained into the transmission pan.
my alli 1000 transmission holds 14.1 quarts. i drained 13.5 quarts including the filter. i refilled with 13.5 quarts of amsoil tes 295 fluid. that is a 95.7% fluid change which is good enough for me.
if you were to drain 10 qts, refill with tes 295 fluid, then drain again imho you would have 71% the first time and about a 95% fluid change the second time at considerable more expense.
don't forget to take the magnet off of the old filter and reinstall it on the new filter.
__________________

__________________
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, toad '14 smart car
DAN L is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Allison transmission on kenworth truck C500 Haddadi Allison Transmission Forum 2 04-05-2011 07:32 PM
Allison Transmission Seminar DriVer Workhorse Chassis Motorhome Club (WCMC) 0 09-27-2010 08:23 AM
Allison Transmission Filter Change Interval (New Policy) Always-RVing Allison Transmission Forum 5 09-07-2010 07:42 PM
Allison Transmission Leak gMw Allison Transmission Forum 3 08-30-2009 05:42 PM
Allison Transmission Leaks Beethovin Winnebago Industries Owner's Forum 21 12-30-2008 01:03 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:00 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.