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11-04-2013, 07:24 PM
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#1
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Senior Member
Join Date: Dec 2012
Posts: 112
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Tow Vehicle Transmission Fluid
2001 Chevy 3500 Dually - Allison Auto Tranny. What is best fluid to use?? Thanks in advance for any info!!!
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11-04-2013, 07:38 PM
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#2
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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No warranty, what are you using now?
Do you want to run a synthetic?
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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11-04-2013, 07:44 PM
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#3
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Senior Member
Join Date: Dec 2012
Posts: 112
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Not sure what's in it now. Just bought trk. Plan to change tomorrow. Leaving on trip this w/e. Manual calls for Dex 111. Not synthetic. Tks
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11-04-2013, 07:52 PM
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#4
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by Cardinal camper
Not sure what's in it now. Just bought trk. Plan to change tomorrow. Leaving on trip this w/e. Manual calls for Dex 111. Not synthetic. Tks
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Been running Mobil 1 in my transmissions for years and never a problem. All were Chevy's, Pontiac's or Cadillac's.
__________________
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11-04-2013, 08:02 PM
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#5
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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Quote:
Originally Posted by Cardinal camper
Not sure what's in it now. Just bought trk. Plan to change tomorrow. Leaving on trip this w/e. Manual calls for Dex 111. Not synthetic. Tks
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I know the Allison is a good transmission so why not go with what Chevy says to run in it?
When I had the fluid changed in mine and just went with the Ford stuff because I saw no reason to change.
I like both of these
KISS or If it ain't broke don't fix it.
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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11-04-2013, 08:14 PM
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#6
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Senior Member
Join Date: Dec 2012
Posts: 112
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Tks. That what I was thinking
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11-04-2013, 08:50 PM
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#7
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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I would only recommend what gm/Allison recommends imo.
Dex III for all 5 speeds
Dex VI for six speeds
I'd flush and refill with transynd
http://www.allisontransmission.com/service/transynd.jsp
Turbs
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11-04-2013, 09:04 PM
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#8
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Senior Member
Join Date: Jul 2012
Posts: 903
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I would not flush just simply drain change the filter and re fill. Just like an oil change. Flushing can cause problems. Some may dis agree but from what I learned in school and some I have witnessed.
__________________
2012 Sandstorm 203slc
2013 Toyota Tundra
Eqil-l-izer hitch,Prodigy P3
2014 Honda Pioneer 700-4
2004 Yamaha Grizzly 660
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11-04-2013, 09:07 PM
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#9
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Senior Member
Join Date: Dec 2012
Posts: 112
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Quote:
Originally Posted by wyo700
I would not flush just simply drain change the filter and re fill. Just like an oil change. Flushing can cause problems. Some may dis agree but from what I learned in school and some I have witnessed.
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Tks!!
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11-04-2013, 10:54 PM
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#10
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Camper Less Camping
Join Date: Apr 2012
Location: NW
Posts: 3,642
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I run synthetic...helps keep fluid temp down compared to non synthetic & takes a lot more to break synthetic down.
Eitherway...just make sure to perform tranny filter/fluid changes consistentently 
__________________
2013 Sabre 32RCTS-6 (sold)
Family of 4 whose always on the GEAUX!
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11-05-2013, 07:55 PM
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#11
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Member
Join Date: Nov 2011
Location: Langley, BC
Posts: 96
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transynd is probably the best fluid for an Allison hands down. Where I work, we have alot of the 06,07,08 GM's with duramax/allison 1000's in the fleet, and I have yet to hear of one failing yet, many are in the 300,000 mile range, all running the transynd
__________________
'07 Toyota Tundra 5.7L DC 4x2
'16 Surveyor 226RBDS
Nights camped 2016 - 3
Nights camped in 2015 - 20
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11-05-2013, 08:58 PM
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#12
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by Ditchooker
transynd is probably the best fluid for an Allison hands down. Where I work, we have alot of the 06,07,08 GM's with duramax/allison 1000's in the fleet, and I have yet to hear of one failing yet, many are in the 300,000 mile range, all running the transynd
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I concur
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11-06-2013, 12:25 AM
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#13
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Senior Member
Join Date: Dec 2012
Posts: 112
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Yea that's what I had been told. If presently using Dex III, do you have to have the complete system flushed to change to the synthetic?? Tks!!
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11-06-2013, 12:54 AM
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#14
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Member
Join Date: Nov 2011
Location: Langley, BC
Posts: 96
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Ideally yes in order to get the most benefit out of it
__________________
'07 Toyota Tundra 5.7L DC 4x2
'16 Surveyor 226RBDS
Nights camped 2016 - 3
Nights camped in 2015 - 20
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11-06-2013, 01:01 AM
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#15
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Senior Member
Join Date: Dec 2012
Posts: 112
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Yea that's what I thought as well. I just changed filters and fluid but I do plan to change to the synthetic next change. Thanks very much!!!
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11-10-2013, 08:36 PM
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#16
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Senior Member
Join Date: Jun 2013
Location: Grand Rapids, MI
Posts: 122
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Transynd is over kill but it is the best possible product to put in there. Maxlife ATF is good and well and Mobil 1 ATF
__________________
Jason
2012 F350 SRW Powerstroke
2011 Acadia Denali
2014 Montana 356TBF
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11-10-2013, 08:49 PM
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#17
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by f1100turbo
I would only recommend what gm/Allison recommends imo.
Dex III for all 5 speeds
Dex VI for six speeds
I'd flush and refill with transynd
Allison Transmission
Turbs |
Times two. Allison has a spin on filter.
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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11-21-2013, 02:26 PM
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#18
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Senior Member
Join Date: Dec 2012
Location: Michigan
Posts: 1,440
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transynd is the best period, anything that is TES 295 with the allison logo on the bottle will work, 95% of built trans owners run it and they are worked a lot harder then a stock trans will ever see Allison Transmission
__________________
2012 Wildcat 344QB
06 LBZ ,CC 4x
lots of mods
Superglide
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