Transmission oil change due to time?

map40. The link I posted was from this forum 4/2011 under Class A Motorhomes. I have saved it. The last comment on his post was 11/13/13.

Charlie D. wrote:

JimR 1 wrote:

Charlie D. wrote:

JimR 1 wrote:
I do mine every three years using Transynd Transmission Fluid and as of two days ago the cost of materials, 5 gallons of fluid and filters, was $311.36, the filters were about $72.00 the rest was the fluid. This was from Detroit Diesel in Fresno Calif.

JimR

ps for Alfa related questions this web site is specific to that brand alfaseeya

The gentleman who developed Transynd says a full one time drain and refill-torque converter, lines etc-OR drain the pan, circulate, drain again, replace the filter and refill is all that is needed for a full change over and no future changes are needed. Oil analysis should be done on about an annual basis to check for contamination from water or glycol but it's a low probability on both. Change if water gets to over 0.2%.

When you say no future oil changes are needed, where is that source??

My source Allison says the oil needs changing on a regular schedule.

Filters every 36 months
Fluid every 48 months

I do it every 36 months both filter and fluid.

JimR

I think we can agree that there is a lot of confusion info out there. The 2018 Chev. 2500 service manual for my Allison says to change the transmission oil every 90,000 miles and spin on filter at 45,000 miles for severe service. This is for a Allision 1000.

Here is the post from this forum from the guy who helped invent Transynd.
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24963117.cfm

AWESOME!!!!!! Sometimnes you stumble across these gems. This is certainly one to bookmark and demonstrates the incredible value of this forum. THANK YOU CHARLIE!!!!!

et2 wrote:

map40 wrote:

et2 wrote:
I believe much of what you say is frabrication and without facts, merely opinion. Purchasing is a procurement element of a company. Not a policy or warranty implementer.

You throw out a lot of general comments that don't mean much of anything or follow any rational thought in regards to the original question that was asked. Just a bunch of straw men arguments.

That's a pretty naive comment. I witnessed negotiations in which an automaker would specify a particular tire size in exchange for a ridiculously low purchase price.
All decided by purchasing.
To your original question, why people don't just follow the manual, the answer is because some of us know how the manuals are written.

Well that about sums it up for me. I'm glad there's actual printed documents based on real life cycle testing, failure analysis and cost analysis. Easy for the person seeking a educated simple answer.

If that makes me naive, so be it. There's nothing you posted that means anything to someone that can see thru the smoke screen.

So I say it again. There's pleanty of actual documented data gathered by various methods, testing, design, and engineering principles that go into making a transmission.

So you want to tell everyone after all the money invested into design, manufacturing and testing that goes into a final product .... That the purchasing guy and the lawyers are writing the manuals. No I'm not naive ...

Here is the post from this forum from the guy who helped invent Transynd.
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24963117.cfm

An incredible post making my point. The engineer WHO DESIGNED THE TRANSYND explained how time does not really affect the fluid. Exactly what I was saying. Some of us know how manuals are written and sometimes asking you find information to make decisions. And the engineer explained EXACTLY what I have been trying to tell you and answered the exact question I had. See, that is why we just don't follow the manuals and ask...

map40 wrote:

et2 wrote:
I believe much of what you say is frabrication and without facts, merely opinion. Purchasing is a procurement element of a company. Not a policy or warranty implementer.

You throw out a lot of general comments that don't mean much of anything or follow any rational thought in regards to the original question that was asked. Just a bunch of straw men arguments.

That's a pretty naive comment. I witnessed negotiations in which an automaker would specify a particular tire size in exchange for a ridiculously low purchase price.
All decided by purchasing.
To your original question, why people don't just follow the manual, the answer is because some of us know how the manuals are written.

Well that about sums it up for me. I'm glad there's actual printed documents based on real life cycle testing, failure analysis and cost analysis. Easy for the person seeking a educated simple answer.

If that makes me naive, so be it. There's nothing you posted that means anything to someone that can see thru the smoke screen.

So I say it again. There's pleanty of actual documented data gathered by various methods, testing, design, and engineering principles that go into making a transmission.

So you want to tell everyone after all the money invested into design, manufacturing and testing that goes into a final product .... That the purchasing guy and the lawyers are writing the manuals. No I'm not naive ...

JimR 1 wrote:

Charlie D. wrote:

JimR 1 wrote:
I do mine every three years using Transynd Transmission Fluid and as of two days ago the cost of materials, 5 gallons of fluid and filters, was $311.36, the filters were about $72.00 the rest was the fluid. This was from Detroit Diesel in Fresno Calif.

JimR

ps for Alfa related questions this web site is specific to that brand alfaseeya

The gentleman who developed Transynd says a full one time drain and refill-torque converter, lines etc-OR drain the pan, circulate, drain again, replace the filter and refill is all that is needed for a full change over and no future changes are needed. Oil analysis should be done on about an annual basis to check for contamination from water or glycol but it's a low probability on both. Change if water gets to over 0.2%.

When you say no future oil changes are needed, where is that source??

My source Allison says the oil needs changing on a regular schedule.

Filters every 36 months
Fluid every 48 months

I do it every 36 months both filter and fluid.

JimR

I think we can agree that there is a lot of confusion info out there. The 2018 Chev. 2500 service manual for my Allison says to change the transmission oil every 90,000 miles and spin on filter at 45,000 miles for severe service. This is for a Allision 1000.

Here is the post from this forum from the guy who helped invent Transynd.
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24963117.cfm

et2 wrote:
I believe much of what you say is frabrication and without facts, merely opinion. Purchasing is a procurement element of a company. Not a policy or warranty implementer.

You throw out a lot of general comments that don't mean much of anything or follow any rational thought in regards to the original question that was asked. Just a bunch of straw men arguments.

That's a pretty naive comment. I witnessed negotiations in which an automaker would specify a particular tire size in exchange for a ridiculously low purchase price.
All decided by purchasing.
To your original question, why people don't just follow the manual, the answer is because some of us know how the manuals are written.

I believe much of what you say is fabrication and without facts, merely opinion. Purchasing is a procurement element of a company. Not a policy or warranty implementer. I deal with purchasing guys everyday of the week. Their job is to purchase what the engineers & manufacturing ask for. Sure they shop around for the best price, but end result is they buy what the engineer and manufacturing supervisors need to get the job done.

You throw out a lot of general comments that don't mean much of anything or follow any rational thought in regards to the original question that was asked. Just a bunch of straw men arguments.

My discussion is based on printed documented data and information. Yours is hearsay.

et2 wrote:
For the record there's nothing factual from your "facts". If so you would be directing us the the supporting information in regards to how it relates to this specific conversation and I assume the Allison transmission. And if you think a engineer is just going to ask a purchasing guy how long, he probably isn't worth is weight in beans.


Who's complaining?

Again there's a wealth of information in the Allsion manuals that I've seen. From required maintenance to fluid recommendations ( both Transynd or not), to programming, fault codes, transmission health prognostics and codes, trouble shooting, different drive modes, shift patterns, etc,etc . Newer transmissions these days will tell you more by pressing two buttons compared to suggestions from some guy on the Internet.

So sorry if I don't buy the purchasing guy and bean counters are calling the shots when they put these things together.

You should spend some time reading before answering. Who is complaining? You. The first sentence you wrote.
No engineer would ever ask purchasing anything. Purchasing will tell the the guy writing the manual or the spec what to write. Unless the engineer can prove that is detrimental, what purchasing says go.
Weather you buy it or not, your choice. I was explaining you how that world works. The facts I gave you are not difficult to find or poorly documented. But of course, if you know enough to not even consider that there might be something you don't know, feel free to ignore what other people say. I much rather listen and make up my own mind after researching, mainly because I know I don't know much. But that's just me, you keep on wondering why people don't just blindly follow the manuals.
Have fun.

For the record there's nothing factual from your "facts". If so you would be directing us the the supporting information in regards to how it relates to this specific conversation and I assume the Allison transmission. And if you think a engineer is just going to ask a purchasing guy how long, he probably isn't worth is weight in beans.


Who's complaining?

Again there's a wealth of information in the Allsion manuals that I've seen. From required maintenance to fluid recommendations ( both Transynd or not), to programming, fault codes, transmission health prognostics and codes, trouble shooting, different drive modes, shift patterns, etc,etc . Newer transmissions these days will tell you more by pressing two buttons compared to suggestions from some guy on the Internet.

So sorry if I don't buy the purchasing guy and bean counters are calling the shots when they put these things together.

et2 wrote:
It most certainly is a baseline. As matter of fact there are different scenarios "based on driving habits" and operational conditions.

Throwing a bunch of stuff on the walls and hope it sticks, doesn't help me to understand what purpose it has in what's being discussed. It isn't rocket science. Personally I've always followed the owners manual fluids recommendations even after warranty expiration. Never had any issues. I venture to say they're pretty dang safe.

Payoffs, negotiations, etc, as you want us to believe doesn't make any sense in helping people make a educated decision based on the fact there is published criteria by the original manufacture that answers all those questions.

One more, I personally know the guy who designed the V10 and trans for the Ford motorhomes. He told me what to do, and it was not what the manual said. I have a rental fleet, and I have sold rentals with over 300K miles and they didn't even consumed oil. My car, a nice 2000 Lincoln Town Car Cartier L, has over 520K and runs like a champ. all originals powertrain. I would not trade it for anything.
All that because I asked, that is why some people just don't simply follow the manufacturers manual, they also ask, like I did.