Transmission oil change due to time?

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!!!!!