Transmission oil and filters when to change ?

Didn't Allison switch to transyd years ago ?? 2004- 2005 ? They haven't used or recommended dex in years I can guarantee the op has transyd and the dex conversion etc has nothing to do with the op question. Only those who want to change their well over 10 year old coaches over, need two changes to get "most" of the dex out. Test it annually as I said, and forget expensive changes on fully transyd coaches !

rgatijnet1 wrote:

usersmanual wrote:

we are talking two different transmissions here and iam talking 295 oil in from factory.I can go 50K miles and change filter and 300K miles on the oil

I am posting for the OP who has a 2013 coach that came with DEXIII, not Transynd, who asked about his fluid change.

I know. you were mistaken about what oil I was referring to but what makes do you know the op has Dex111?? its a 2013 Allison 3060 I would have assumed it came with 295 TS oil

OK both the last statements ARE correct. There ARE different change intervals for 100% Transynd vs partial Transynd.

But, I am quite surprised that a 2013 chassis did not come from the chassis maker with Transynd in it.

On edit: If Freightliner chassis, it did come with Transynd.

Go to: http://www.fcccrv.com/coaches/

Click on 2013 Tour. Second line of "Features" says Transynd.

usersmanual wrote:

we are talking two different transmissions here and iam talking 295 oil in from factory.I can go 50K miles and change filter and 300K miles on the oil

I am posting for the OP who has a 2013 coach that came with DEXIII, not Transynd, who asked about his fluid change.

rgatijnet1 wrote:

usersmanual wrote:

rgatijnet1 wrote:

usersmanual wrote:

rgatijnet1 wrote:

J-Rooster wrote:
I've never changed my Allison Tranny fluid or filter since my coach was new 12 years ago! I thought I read a post from Bumpy a few weeks ago that it should be done at 25,000 miles? I change my motor oil and filter every 10,000 miles or once a year.

I believe with the 1000MH transmission it was recommended that you change the screw on filter at 5000 miles and then again at 30,000 miles. The internal filter gets changed at overhaul.
Your transmission came with DexIII which does not last as long as Transynd. Transynd is what Allison recommends now for your transmission and it will extend your fluid change interval to more than double that of DexIII but it takes two changes to get all of the old DexIII out to use the new change interval.
I did notice that after I changed to Transynd that my transmission runs cooler in the Western mountains.

O would say that 295 extends your change interval by about 4-5 times

Not on the first change according to Allison. Most people change and then drive for 25,000+ miles before that change again to have mostly Transynd fluid.

Allison transynd 295 oil is good for 300K miles/48 months/6000 hours normal duty so no you don't change this stuff at no 25K miles

\

Have you read the manual? The first fluid change to Transynd DOES NOT extend the fluid change interval at all. It is treated just like it has 100% DexIII. I mentioned the 25,000 mile fluid change because some people want to have 100% Transynd fluid in their transmission and this takes TWO fluid changes to accomplish it. You can certainly wait longer, or not wait as long, but you cannot exceed the DexIII schedule. Because of the advantages of Transynd, as mentioned by the Allison expert that used to post on this forum, some people will just do two quick fluid changes, like I did, and some will drive several thousand miles before they do the second fluid change to have 100% Transynd fluid, which is now eligible for the extended change interval. And Allison says you cannot flush their transmissions so you have to go with two manual fluid changes to change to Transynd.

we are talking two different transmissions here and iam talking 295 oil in from factory.I can go 50K miles and change filter and 300K miles on the oil

usersmanual wrote:

Blaster Man wrote:

usersmanual wrote:

Gordysvette wrote:
Thanks so much everyone. I have an appointment Monday at Coach care to Winterize I'll have them service the transmission ,the engine oil and all filters .

u have only 32000 miles on it? you said u changed "several times" already; A ISL can go 20000 miles on oil change;
so how could it need a oil change already??

The manual for my ISL said to change the engine oil at 20,000 miles or annually, which ever came first.

yes iam well aware of that.mine does too. means nothing really Cummins say 20000 miles so U cant tell me that if u go only 4000 miles and its a year you have to change the oil.If you look cummins and Allison always put a time factor in there just to cover their butts. Iam a believer in looking after stuff but sometimes you have to have the ability to read between the lines so to speak
I presently change mine every 3 years or 15K miles

Under warranty I'm sticking to mfg's oil change policy (annually).
After warranty it will be on my terms.

If you get the Transynd tested, and it comes back good, no need to change, regardless of miles. But do change the filters.

usersmanual wrote:

rgatijnet1 wrote:

usersmanual wrote:

rgatijnet1 wrote:

J-Rooster wrote:
I've never changed my Allison Tranny fluid or filter since my coach was new 12 years ago! I thought I read a post from Bumpy a few weeks ago that it should be done at 25,000 miles? I change my motor oil and filter every 10,000 miles or once a year.

I believe with the 1000MH transmission it was recommended that you change the screw on filter at 5000 miles and then again at 30,000 miles. The internal filter gets changed at overhaul.
Your transmission came with DexIII which does not last as long as Transynd. Transynd is what Allison recommends now for your transmission and it will extend your fluid change interval to more than double that of DexIII but it takes two changes to get all of the old DexIII out to use the new change interval.
I did notice that after I changed to Transynd that my transmission runs cooler in the Western mountains.

O would say that 295 extends your change interval by about 4-5 times

Not on the first change according to Allison. Most people change and then drive for 25,000+ miles before that change again to have mostly Transynd fluid.

Allison transynd 295 oil is good for 300K miles/48 months/6000 hours normal duty so no you don't change this stuff at no 25K miles

\

Have you read the manual? The first fluid change to Transynd DOES NOT extend the fluid change interval at all. It is treated just like it has 100% DexIII. I mentioned the 25,000 mile fluid change because some people want to have 100% Transynd fluid in their transmission and this takes TWO fluid changes to accomplish it. You can certainly wait longer, or not wait as long, but you cannot exceed the DexIII schedule. Because of the advantages of Transynd, as mentioned by the Allison expert that used to post on this forum, some people will just do two quick fluid changes, like I did, and some will drive several thousand miles before they do the second fluid change to have 100% Transynd fluid, which is now eligible for the extended change interval. And Allison says you cannot flush their transmissions so you have to go with two manual fluid changes to change to Transynd.

rgatijnet1 wrote:

J-Rooster wrote:
I've never changed my Allison Tranny fluid or filter since my coach was new 12 years ago! I thought I read a post from Bumpy a few weeks ago that it should be done at 25,000 miles? I change my motor oil and filter every 10,000 miles or once a year.

I believe with the 1000MH transmission it was recommended that you change the screw on filter at 5000 miles and then again at 30,000 miles. The internal filter gets changed at overhaul.
Your transmission came with DexIII which does not last as long as Transynd. Transynd is what Allison recommends now for your transmission and it will extend your fluid change interval to more than double that of DexIII but it takes two changes to get all of the old DexIII out to use the new change interval.
I did notice that after I changed to Transynd that my transmission runs cooler in the Western mountains.

Thanks for the info Ron