Skip to main content
Topic: Transynd (Read 1402 times) previous topic - next topic

Transynd

Getting ready to do the initial Transynd change in the transmission.  Looking for info as to ball park prices to do it.  Found a Stewart & Stevenson shop in Panama City Fl.  60 miles from my house.
Terry and Cheryl Brown
1997 U295 36'
Build #5066
2006 Jeep TJ Rubicon
1993 BMW R100 GSPD

Re: Transynd

Reply #1
Getting ready to do the initial Transynd change in the transmission.  Looking for info as to ball park prices to do it. 

$563 for fluid and filter, $132 labor at MOT in 2011 during a maintenance special, so about $700 total.

$450 for RVMobilelube.com (operates here in Texas) for filter and the first 6 gallons of Transynd, $50/each additional gallon so about $600 total.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transynd

Reply #2
You will want to price a PAIL (5 gallons).  That should leave you with about one quart left after a filter and fluid change in an Allison 3000.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Transynd

Reply #3
My transmission took 13 gallons of Transynd.

best, paul
1999 U320 40' 1200 watts on roof. 12cf AC/DC Cold plate fridge/freezer. VMS 240 CL Honda Element

Re: Transynd

Reply #4
We had our transmission serviced at FOT in August 2014. Transynd, filters and labor, $609. Our Transmission is the Allison 3000MH.,

Larry
Larry and Terry
Ex 2004 U270 36'

Re: Transynd

Reply #5
My transmission took 13 gallons of Transynd.

best, paul

But the OP has an Allison 3000, not 4000.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020


Re: Transynd

Reply #7
We switched to Transynd at Interstate Powersystems in Bloomington, MN. summer before last. 1/4 mile from Mall of America while you wait.  Flush, fluids, all filters under $500.

Change filters every 12K miles. Probably. Never change fluids again, at least in my lifetime.

Interstate > Locations > Minnesota > Minneapolis

Roger
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Transynd

Reply #8
We switched to Transynd at Interstate Powersystems in Bloomington, MN. summer before last.

Change filters every 12K miles. Probably. Never change fluids again, at least in my lifetime.

My goodness, I hope you're around longer!  Transynd change is recommended every 75K OR 36 months, whichever comes first



Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transynd

Reply #9
Yes, Allison classifies retarder use as severe duty requiring Michele's replacement schedule.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: Transynd

Reply #10
That is interesting.  The Allison Service center (interstate) said much more than that even under heavy duty use.  Maybe with a retarder it is more often.  Even at 75K miles it will be a long time, maybe 10 years.  Even then it is a very cost effective change.

Thanks for the heads up.

This helps...

Transynd Fluid change interval


Roger
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Transynd

Reply #11
Even at 75K miles it will be a long time, maybe 10 years. 

It's 75K OR 36 months, whichever comes first  Barry's site has this Transynd Fluid change interval
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transynd

Reply #12
Roger might have been thinking of what the former Allison engineering,Tom Johnson (hzjcm8), posted: Transynd Service Intervals
That's the beauty of TranSynd.  It will remain stable probably as long as you have the motorhome unless it gets contaminated.  So, you just need a Basic Oil Analysis Kit that measures metals (wear, contaminant, and additives), viscosity at 100C and contamination from water or glycol (sodium and potassium are used as indicators).
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Transynd

Reply #13
I went back and looked at the paperwork from my Transynd change.  The Allison guy and the paper show that for the 4000 sries tranmissions under severe duty the change cycle was 150,000 miles or 48 months. (I should live that long). Severe duty included any retarder.

So Foretravel's service bulletin is probably on the conservative side whch is OK.  Even at 36 months it is still better than regular fluid at 12K/6 months.

And I do fluids analysis at leat once a year.  A coolant leak into the transmission is an expensive repair.

Thanks for the heads up.  I had not seen the FT service bulletin.

Roger
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Transynd

Reply #14
How do you sample transmission fluid?

best, paul

Quote
And I do fluids analysis at leat once a year. A coolant leak into the transmission is an expensive repair.
1999 U320 40' 1200 watts on roof. 12cf AC/DC Cold plate fridge/freezer. VMS 240 CL Honda Element

Re: Transynd

Reply #15
I had my ATF tested. The lab also sold a kit with a pump and hose for sampling. You can re-use the pump, but the hose gets tossed after one use.
Mark Freeman 1995 grand villa, Brimson Mn
8.3 Cummins  G95 4709 40 WTBS U280 WE21

Re: Transynd

Reply #16
I went back and looked at the paperwork from my Transynd change.  The Allison guy and the paper show that for the 4000 sries tranmissions under severe duty the change cycle was 150,000 miles or 48 months. (I should live that long). Severe duty included any retarder.

So Foretravel's service bulletin is probably on the conservative side whch is OK.  Even at 36 months it is still better than regular fluid at 12K/6 months.

I searched Allison and found the Allison service bulletin covering Transynd and think I see the issue causing some discrepancy.  Allison says 75K/36 months for severe service FILTER change and 150K/48 months for severe service FLUID change.  Filter and fluids technically aren't on the same schedule, so the simple solution for FT is to recommendation to change both at the lesser interval of 36 months.

FAQ-Service Tips

Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Transynd

Reply #17
I would hardly consider motorhome use (which is mostly highway miles) in the same category as severe service transit busses and garbage trucks, which start/stop thousands of times a day and heavily use the retarder. Highway miles with no shifting and a locked torque converter put little to no wear on fluid/components.

But, it's not my $500+ per oil change that is getting spent, lol.
1998 U270 34'

Re: Transynd

Reply #18
I searched Allison and found the Allison service bulletin covering Transynd and think I see the issue causing some discrepancy.  Allison says 75K/36 months for severe service FILTER change and 150K/48 months for severe service FLUID change.  Filter and fluids technically aren't on the same schedule, so the simple solution for FT is to recommendation to change both at the lesser interval of 36 months.

FAQ-Service Tips

According to my Allison Manual, the 48 month fluid change interval is for transmissions with High Capacity Filters. The 36 month fluid change interval is for transmissions with Gold Series Filters.

What year did FOT change to High Capacity Filters?

I just looked up my service records from FOT. The filter kit used was part number 25948988. Research on the internet determined that this part number is a High Capacity Filter.

Larry
Larry and Terry
Ex 2004 U270 36'

Re: Transynd

Reply #19
My 95 U320 with M11 has a Jake Brake. Can I assume that this does NOT enter the extreme duty classification?
1995 U320C SE 40'
Jeep 4x4 Commander - Limited - Hemi
"The Pack"  Yogi and Diesel our Airedales -  Charlie our Boxer/Akita mix. Gone but NEVER forgotten Jake our yellow Lab.
NRA Law Enforcement Firearms instructor - Handgun/shotgun
Regional Firearms instructor for national Armored Transp. Co.

Re: Transynd

Reply #20
My 95 U320 with M11 has a Jake Brake. Can I assume that this does NOT enter the extreme duty classification?

Correct.  It is the presence of a transmission retarder that ups it to severe duty.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Transynd

Reply #21
Sample..  Sample..  Sample.  pc
S/W Houston 95" U320C SE/40' 
Build #4778  Cummins M11
Repairs & Covered RV Parking (BAO)
PPL is close..