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Old 04-22-2022, 11:12 AM   #1443
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Quote:
Originally Posted by hzjcm8 View Post
Thanks Sundancer,
It's true. As you suggest, Allison owners can only assess the true condition of their fluid and transmission through transmission fluid analysis !!!

Here's a link to my Technical Paper that might interest you all. https://www.jglubricantservices.com/docs/rv_technical_sheet.pdf
Thank you for helping with useful information Mr Transynd!

I was looking for a FB poster that has a 95 Fleetwood and I have a 93 PaceArrow with a 3000 in it, the specs say Dex II but his I am not sure. In the posts is there a table for the years of transmissions that old? I see spec for TES 295 and others yet do not know what the Dex II was 295/468? What can it be replaced by, since my truck shop a few years ago tested it and said, it was good to go. I replace my engine oil though, they do a lot of diesel work.

1993 Pace Arrow 8.3L Allison 3000 no problems with anything, I steered the 95 owner to your forum..
Can Transynd replace DexII?
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Old 04-22-2022, 11:16 AM   #1444
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Yes the Transynd can replace all the older spec fluids. I replaced the old Dex with the Transynd in my 1995 Allison MD3060 years ago and have no transmission issues.
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Old 04-22-2022, 04:06 PM   #1445
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FYI the latest version of Transynd is 668 and replaces 295 and other previous recommended fluids.
my the Allison website as they have recent info on fluids including Transynd 668.
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Old 04-22-2022, 07:58 PM   #1446
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295 and 668 are totally compatible. They made 668 so it would be compatible with other transmissions....and still be good for us.
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Old 04-23-2022, 07:39 AM   #1447
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Quote:
Originally Posted by miwok View Post
Thank you for helping with useful information Mr Transynd!

I was looking for a FB poster that has a 95 Fleetwood and I have a 93 PaceArrow with a 3000 in it, the specs say Dex II but his I am not sure. In the posts is there a table for the years of transmissions that old? I see spec for TES 295 and others yet do not know what the Dex II was 295/468? What can it be replaced by, since my truck shop a few years ago tested it and said, it was good to go. I replace my engine oil though, they do a lot of diesel work.

1993 Pace Arrow 8.3L Allison 3000 no problems with anything, I steered the 95 owner to your forum..
Can Transynd replace DexII?
Yes. TranSynd can replace DEXRON-II and DEXRON-III where they are called for in Owner's Manuals. See attached file for information about history of GM's DEXRON specification.
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Old 05-01-2022, 07:25 PM   #1448
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Hello. I’m getting ready to change the fluid in an Allison 2000. I have a 5 gallon bucket of the 668 coming and think I should be able to do it twice with just draining the fluid from the pan. Since I’m doing it twice does it really matter if the fluid is hot? The temp in the little driving I’ve done hardly registers and may get over 140, on the long drive after I bought it may have registered 170-180.
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Old 05-02-2022, 04:54 AM   #1449
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Quote:
Originally Posted by Dearranged View Post
Hello. Iím getting ready to change the fluid in an Allison 2000. I have a 5 gallon bucket of the 668 coming and think I should be able to do it twice with just draining the fluid from the pan. Since Iím doing it twice does it really matter if the fluid is hot? The temp in the little driving Iíve done hardly registers and may get over 140, on the long drive after I bought it may have registered 170-180.
Dearranged,

I've never actually done the experiment; but, I'm sure it's fine to drain the transmission at ambient temperature especially since you're doing the double drain and refill. I would suggest a short 30 minute drive between the two drains and refills.

Have a good day !!!
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Old 05-02-2022, 06:46 AM   #1450
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Dearranged,

I've never actually done the experiment; but, I'm sure it's fine to drain the transmission at ambient temperature especially since you're doing the double drain and refill. I would suggest a short 30 minute drive between the two drains and refills.

Have a good day !!!
Thanks Tom. I expect some miles between changes
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Old 05-12-2022, 08:30 AM   #1451
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Doing the 2 drain operation, tough to see that good fluid going down the hole. Lot brighter and clearer than the 1st drain though.
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Old 05-12-2022, 07:03 PM   #1452
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On my last coach although a 2005 gasser with a Allison 2100 I did only one drain and fill if I wanted to do another at another time I would have done it. Mine had the Dextron in it so I changed it. IMO too many get all focused in on two drain and fills. Wasteful! Do it a couple yrs later if itís that important to you. My $.02
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Old 05-13-2022, 04:33 AM   #1453
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Doing the 2 drain operation, tough to see that good fluid going down the hole. Lot brighter and clearer than the 1st drain though.
Allison manuals I've read say OK to do a single change and use the appropriate change interval for the previous fluid if you are upgrading to Transynd from Dex.
You just can't use the higher mileage / longer interval for a fluid upgrade until the second drain & refill.
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