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Topic: TRANSYND: WHEN TO CHANGE? (Read 2779 times) previous topic - next topic

Re: TRANSYND: WHEN TO CHANGE?

Reply #25
I think it a matter of interpretation and asking the right question.
 
Allison is probably saying that since you are choosing to change to Transynd, in order to get the full benefit of Transynd as soon as possible, you should change it again at 6 months.  Cost to you is not in the equation and should not be in this case.  But if you are happy with a partial benefit of Transynd and a slower transition to full Transynd, use your own judgment on when you should change again.
 
They just do not a company answer for your question.  Their advice is never based on cost to you.

Re: TRANSYND: WHEN TO CHANGE?

Reply #26
I agree with Barry.  Having 90% mixture of Transynd and 10% standard ATF is supposedly better than 100% non-Transynd.
 
I might add that looking at the Allison service ratings and intervals I've posted, there appears to be a relationship between ave. speed of the vehicle in service.  I believe (I may be wrong) that a great percentage of the Allison automatics in use today are in the transit bus and trash pick-up service.  The average speed of these vehicles is significantly lower than our average RV and we idle a lot less.  My average speed based on tach hour meter since coach ownership is 39.8 MPH.  A transit bus probaly averages 5 to 8 MPH based on engine run time.
 
I only drive about 5,000 miles per year and average about 140 hours engine run time per year.  I change the ATF every two years, and am likely to continue that practice...Retarder and all.
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH

Re: TRANSYND: WHEN TO CHANGE?

Reply #27
Strange,-  I had our tranny serviced by MOT in March 09 and they apparently used Dex lll according to the work sheet.  Is the Dex Vl recommendation that new??
Norm H.
2002 U320 3602
PBDS
Build # 5941
MC# 16699


1997 Gulfstream Tourmaster, Cummins 8.3
2000 Country Coach Magna, Cat C-10
1998 Foretravel U295, Cummins 8.3

Re: TRANSYND: WHEN TO CHANGE?

Reply #28
Had my fluid changed at Allison service center when I had the turbine speed sensor replaced last May.  The invoice just shows DEX-5GAL @ $85.88 and DEX-QT quantity 4 @ $4.58 each so I'm not sure what they used but surely the Allsion certified facility would know what to use.  Incidentally, the sensor replacement solved my shifting problems (not wanting to come out of 1st gear until completely warmed up).  They really didn't push the Transynd for my transmission saying the normal fluid changed regularly was just fine and according to the computer everything was "in the green" whatever that means.
Dwayne Keith
1992 U240
3116/MD3060

Re: TRANSYND: WHEN TO CHANGE?

Reply #29
Had my fluid changed at Allison service center when I had the turbine speed sensor replaced last May.  The invoice just shows DEX-5GAL @ $85.88 and DEX-QT quantity 4 @ $4.58 each so I'm not sure what they used but surely the Allsion certified facility would know what to use.  Incidentally, the sensor replacement solved my shifting problems (not wanting to come out of 1st gear until completely warmed up).  They really didn't push the Transynd for my transmission saying the normal fluid changed regularly was just fine and according to the computer everything was "in the green" whatever that means.
I would say you got sob 5 gallons Dexron and 4 quarts of the same.  That was what they wanted to give me until they found out the previous owner had changed to Transynd.  Never go back to Dexron if transmission was changed to Transynd from what I've heard.
1994 U225
build #4514

Re: TRANSYND: WHEN TO CHANGE?

Reply #30
Yes...I learned that here on this forum and so I asked the Allison folks if they could tell the difference when they recommended the plain old transmission fluid.  They said that they could tell and that I had did not currently have transynd so I stuck with the regular fluid.
Dwayne Keith
1992 U240
3116/MD3060

Re: TRANSYND: WHEN TO CHANGE?

Reply #31
Dwayne,

You CAN switch to Transynd if you want at the next filter/fluid change.

Many of us with MD3060's have made that switch.

Brett Wolfe
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