Allison 1000

Seamutt wrote:
What about Dexron 6 in an Allison?

DEXRON-VI is no longer recommended for any Allison products. This includes any of the Allison 1000/2000 and 3000/4000 Series.

What about Dexron 6 in an Allison?

rgatijnet1 wrote:
Granted TES 295 fluid does cost a few bucks more but MY transmission shifts better and runs cooler with it, as verified with my digital scan gauge monitoring transmission fluid temperature. Transmissions are expensive. Transmission fluid is cheap. I would rather use what Allison recommends than a less expensive fluid that I MAY be able to get by with.

I had the same experience when I went with Transynd fluid.

Fred

hooligan wrote:

rgatijnet1 wrote:

To the original question, regarding the Allison 1000MH transmission. ONLY TES295 approved transmission fluids are recommended. D3M fluid is NOT TES295 approved. D3M fluid specs
So the choice is yours, use a non-approved fluid or use what the Allison engineers recommend.

TRANSYND (TES 295) is obviously the better/ and recommended choice for use in Allison Transmissions.
Most Allison's in use now come with or have been refilled with TRANSYND, however those remaining transmissions using DEXRON III equivalent fluids, licensed by Allison as meeting their TES 389 are using an approved transmission fluid.
As stated on the Allison website: "TES 389™ fluids may be used in traditional on-highway products but do not provide the same drain intervals or filter change intervals as Allison Approved TES 295®"
Your link to Petro-Canada D3M fluid indicates it is TES389 licensed and therefore is an approved Allison fluid..

edit..I should add that not all D3M fluids are licensed as meeting Allison's TES389..

TES 389 means D3M is an approved fluid to replace Dex III, not Transynd. As I said, you can use what you wants but Allison recommends a TES295 approved fluid made by several different manufacturers. Since the TES 389 fluids certainly do not last as long in "severe" usage (most RV are operated at close to the maximum gross weight all of the time, thus severe service) why take a chance with a fluid that is only a few bucks cheaper? From the Allison site, it is more than just extended drain intervals. They say that:
Allison recommends that customers use an Allison Approved TES 295® automatic transmission fluid to extend drain intervals and enhance transmission performance and durability in all operating environments with on-highway products.
Granted TES 295 fluid does cost a few bucks more but MY transmission shifts better and runs cooler with it, as verified with my digital scan gauge monitoring transmission fluid temperature. Transmissions are expensive. Transmission fluid is cheap. I would rather use what Allison recommends than a less expensive fluid that I MAY be able to get by with.

rgatijnet1 wrote:

To the original question, regarding the Allison 1000MH transmission. ONLY TES295 approved transmission fluids are recommended. D3M fluid is NOT TES295 approved. D3M fluid specs
So the choice is yours, use a non-approved fluid or use what the Allison engineers recommend.

TRANSYND (TES 295) is obviously the better/ and recommended choice for use in Allison Transmissions.
Most Allison's in use now come with or have been refilled with TRANSYND, however those remaining transmissions using DEXRON III equivalent fluids, licensed by Allison as meeting their TES 389 are using an approved transmission fluid.
As stated on the Allison website: "TES 389™ fluids may be used in traditional on-highway products but do not provide the same drain intervals or filter change intervals as Allison Approved TES 295®"
Your link to Petro-Canada D3M fluid indicates it is TES389 licensed and therefore is an approved Allison fluid..

edit..I should add that not all D3M fluids are licensed as meeting Allison's TES389..

fredbon wrote:

hzjcm8 wrote:

They were (and still are) trying to tell the consumer that their fluids pass both the GM DEXRON-IIIH and the Ford MERCON specifications.

Note: I know this because I used to be on the GM Automatic Transmission Fluid Committee that granted GM DEXRON-IIIH licenses. In fact, I go back to 1990 when GM still had the DEXRON-II and DEXRON-IIE specifications.

Back to the original question, I know a broken record, can consumers be safe using D3M products in Allison Transmissions?

Fred

To the original question, regarding the Allison 1000MH transmission. ONLY TES295 approved transmission fluids are recommended. D3M fluid is NOT TES295 approved. D3M fluid specs
So the choice is yours, use a non-approved fluid or use what the Allison engineers recommend.

fredbon wrote:

hzjcm8 wrote:

They were (and still are) trying to tell the consumer that their fluids pass both the GM DEXRON-IIIH and the Ford MERCON specifications.

Note: I know this because I used to be on the GM Automatic Transmission Fluid Committee that granted GM DEXRON-IIIH licenses. In fact, I go back to 1990 when GM still had the DEXRON-II and DEXRON-IIE specifications.

Back to the original question, I know a broken record, can consumers be safe using D3M products in Allison Transmissions?

Fred

Fredbon (et al),
Some of these older DEXRON-IIIH/MERCON (D3M) products are not compatible with Allison Viton seals. Your seals could harden and crack over time if your transmission was built prior to the serial number break point (2006-2007 timeframe). The problem is that, without undergoing the TES-389 seal test, no one really knows for sure which ones are good and which ones are bad. The only older DEXRON-IIIH/MERCON products that are known to not cause problems with Allison Viton seals are those listed on the TES-389 approved fluids list.

hzjcm8 wrote:

They were (and still are) trying to tell the consumer that their fluids pass both the GM DEXRON-IIIH and the Ford MERCON specifications.

Note: I know this because I used to be on the GM Automatic Transmission Fluid Committee that granted GM DEXRON-IIIH licenses. In fact, I go back to 1990 when GM still had the DEXRON-II and DEXRON-IIE specifications.

Back to the original question, I know a broken record, can consumers be safe using D3M products in Allison Transmissions?

Fred

fredbon wrote:
What am I missing, I didn't see any Dextron III brand products, just the equivalent products. Back to the previous recommendations, Dextron Brand is no longer approved.

Fred

,

Allison TES-389 approved products were all, at one time, GM DEXRON-IIIH licensed products. However, the GM DEXRON-IIIH specification was obsoleted after DEXRON-VI hit the market. So, those older DEXRON-IIIH products lost their GM licenses. The word DEXRON (all in caps with a circle R) is a GM owned trademark. After the DEXRON-IIIH specification was obsoleted, manufacturers of those products could no longer legally put the word "DEXRON" on the product labels or containers. That's why these older DEXRON-III products, that are still on the market today, carry the D3M designation. Most of those older products passed both the GM DEXRON-III (D3) specification and the Ford MERCON (M) specification. So, manufacturers began to list their older DEXRON-IIIH/MERCON products using the abbreviation "D3M". They were (and still are) trying to tell the consumer that their fluids pass both the GM DEXRON-IIIH and the Ford MERCON specifications.

Note: I know this because I used to be on the GM Automatic Transmission Fluid Committee that granted GM DEXRON-IIIH licenses. In fact, I go back to 1990 when GM still had the DEXRON-II and DEXRON-IIE specifications.

Switchman wrote:
When i took our coach to an Allison dealer for the first oil change, we talked about changeing over to transynd oil, let see what you have, he came back later and said the good news you have transyd oil. So he changed the oil and replaced the filter. He also said see me in two years for the next oil change and at that time he'll replace the filter that in the transmission.

I'm guessing that the Allison dealer was planning on doing an expensive overhaul on your transmission in two years since Allison recommends ONLY changing the internal filter during an overhaul on the 1000 transmission. It is great to find a technician that can accurately predict when your transmission will fail, two years in advance, and require an overhaul. :R