Allison ATF - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 13 (permalink) Old 03-03-2008, 10:39 AM Thread Starter
 
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Allison ATF

I can't find a place to order TranSynd transmission fluid from:shrug: . Does anyone know if the Bully Dog Rapid Power ATF is any good?
Oh and one more thing any thoughts on the Royal Purple ATF? I have their gear oil in my diffs.
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post #2 of 13 (permalink) Old 03-03-2008, 11:52 AM
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I would go with Amsoil, but that is a personal preferance. Easier to find and doesnt take long to get it to the house.

Tony

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post #3 of 13 (permalink) Old 03-04-2008, 12:10 AM
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I got Transynd right at the GM parts counter......
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post #4 of 13 (permalink) Old 03-04-2008, 12:13 AM
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Is there that much difference? When I changed mine I put in Valvoline Dextron 6(?) which is fully synthetic. Same as GM spec.

06 Sierra 2500 4wd lb. Predator, S&B, MBRP duals-no cat, Quadzilla gauges, Allison Jr., Riderite air bags, PPE Tie rod sleeves, egr plate / finger stick. 02 Chevy 3500 8.1L 4wd dump 9' Fisher mm2, sander. 03 Kubota L4630. 80'S or 90's Komatsu pc50. 89 d250 5.9 which may someday go into something.:
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post #5 of 13 (permalink) Old 03-04-2008, 12:19 AM
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The are having a problem with the Dex6 in Canada right now. It is kinda gelling and burning up alot of transmissions. The Dex 6 is up to GM specs, but not Allison.

Tony

2001 GMC 2500HD EC/LB, 4X4. A few go fast goodies. 540hp/1107tq Danville Dyno 11/09, Kennedy 40% injectors.

05 IH 9400i with Cummins ISX pulling a lumber bunk trailer, stuck in a swamp somewhere in Indiana.

Proud Veteran Served 6yrs Active Army From Germany, Kuwait and Bosnia to Ft. Hood and Ft. Knox
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post #6 of 13 (permalink) Old 03-04-2008, 12:32 AM
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No *****. I might look for something else then.

06 Sierra 2500 4wd lb. Predator, S&B, MBRP duals-no cat, Quadzilla gauges, Allison Jr., Riderite air bags, PPE Tie rod sleeves, egr plate / finger stick. 02 Chevy 3500 8.1L 4wd dump 9' Fisher mm2, sander. 03 Kubota L4630. 80'S or 90's Komatsu pc50. 89 d250 5.9 which may someday go into something.:
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post #7 of 13 (permalink) Old 03-04-2008, 01:09 AM
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Quote:
Originally Posted by firehillbilly
Is there that much difference? When I changed mine I put in Valvoline Dextron 6(?) which is fully synthetic. Same as GM spec.
Dex is the ATF GM recommends. Transynd is the ATF Allison recommends. The change interval on Transynd is longer than on DEX. Transynd also runs cooler. Heat kills everything. Anything I can do to reduce heat is helping my stuff last longer.

It's what goes in the medium duty trucks, so it's good enough for my light truck.
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post #8 of 13 (permalink) Old 03-08-2008, 12:32 AM
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Will the 2 blend together? When I change fluid I usually just drain what I can out of tranny put new filter on and let her go. Do it every 20,000 and fluid is good. So with that method there will still be quite a few qts of the old in the system until eventually it will get completely replaced. Or is it better to flush and refill completely w/ Transynd?

06 Sierra 2500 4wd lb. Predator, S&B, MBRP duals-no cat, Quadzilla gauges, Allison Jr., Riderite air bags, PPE Tie rod sleeves, egr plate / finger stick. 02 Chevy 3500 8.1L 4wd dump 9' Fisher mm2, sander. 03 Kubota L4630. 80'S or 90's Komatsu pc50. 89 d250 5.9 which may someday go into something.:
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post #9 of 13 (permalink) Old 03-08-2008, 12:41 PM
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I think it's recommended to flush & fill.
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post #10 of 13 (permalink) Old 03-18-2008, 08:49 PM
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I have an ally HT545.
how do you do a flush/refill?
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