Recent Topics
My break in method
by Duffyjr
38 minutes 0 seconds ago
Done with NAPA
by Duffyjr
Today at 05:59 AM
when will they start making batteries last longer?
by motor_oil_madman
Today at 12:11 AM
Are older Toyota trucks popular in Mexico?
by Stag
Yesterday at 10:33 PM
Honda dealers standard OC is 5w-20 blend
by NormanBuntz
Yesterday at 10:12 PM
Caprice Burnout
by ls1mike
Yesterday at 09:49 PM
Harvey cars parked
by gfh77665
Yesterday at 09:34 PM
Overlanding the Pennsylvania Wilds
by SKVenture
Yesterday at 09:28 PM
People adverse to weekend plans. Annoying.
by Kurtatron
Yesterday at 09:25 PM
2000 4Runner - Walker vs Eastern Cats
by SKVenture
Yesterday at 09:24 PM
Lower cost wheel source 2017 CR-V
by Pablo
Yesterday at 08:26 PM
VOA Red Line 15w40 HDEO
by claluja
Yesterday at 07:02 PM
"Life Hacks" video on YouTube full of BAD advice
by SirTanon
Yesterday at 06:36 PM
Opinions on buying a hail damaged/ repaired car
by Blue_Goose
Yesterday at 06:34 PM
Euro Cars Used to be Very Reliable
by Speak2Mountain
Yesterday at 06:24 PM
Historical Perspective
by Ducked
Yesterday at 06:15 PM
Fresh fluid film
by buck91
Yesterday at 05:41 PM
Wanger TQ's finally squeaking
by buck91
Yesterday at 05:34 PM
Email hosts?
by buck91
Yesterday at 05:31 PM
Toyota Tundra 4.6 vs. 5.7
by zfasts03
Yesterday at 03:45 PM
Newest Members
notso5, SherriWacker, garyts95, phillipgolden, Ebuks
62887 Registered Users
Who's Online
61 registered (billt460, bluesubie, 97f150, aquariuscsm, BigCahuna, alarmguy, 5 invisible), 1457 Guests and 12 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
62887 Members
66 Forums
271147 Topics
4496905 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#3460847 - 08/20/14 10:43 PM New GM 8 speed transmission to use new Syn fluid
Nate1979 Offline


Registered: 04/08/13
Posts: 3501
Loc: Portland, OR
I couldn't find any details about the new fluid except a few of the articles make mention of a new synthetic fluid in the new 8l90 GM transmission:
http://www.offroadxtreme.com/news/detail...-silverado-1500

I wonder if there will be a new Dexron spec?
_________________________
2015 GMC Sierra 2500 6.0L
2010 Subaru Forester 2.5X

Top
#3460917 - 08/21/14 02:47 AM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
OneEyeJack Offline


Registered: 09/14/10
Posts: 6695
Loc: S California
New spec, new license fee. What's not to like about that for GM? People here that really beat the old 6 speed in off road and trailer towing like Red Line D6 in the transmission and transfer case.

Top
#3461031 - 08/21/14 08:02 AM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
bigt61 Offline


Registered: 02/12/13
Posts: 3055
Loc: Virginia
Transmission technology is incredible right now. I hope the durability is there.
_________________________
92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k

Top
#3461038 - 08/21/14 08:07 AM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 18529
Loc: Sunny Florida
Yep, and rated for over 750 foot pounds of torque!

Faster shifts than a Porsche DCT.

With the proliferation of torque converter equipped DCT's in Acura, Benz, and others this means the slush box is not dead...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3461092 - 08/21/14 09:26 AM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
Greasymechtech Offline


Registered: 07/11/14
Posts: 1544
Loc: Paradise of Florida
So, Dexclown-6 wasn't good enough? Waiting on Dexron7!

We'll just have to be happy with synthetic Dexron-6HP.

I just hope that its backwards compatible, as an upgrade to DexronIII and Dexprofit-6.
_________________________
At what point should a lurker start posting :-)

Top
#3461228 - 08/21/14 12:01 PM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 18529
Loc: Sunny Florida
Why the hard feelings? By almost any measure of effectiveness Dex VI is leagues better than previous versions.

Please explain without the hyperbole...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3462270 - 08/22/14 11:33 AM Re: New GM 8 speed transmission to use new Syn fluid [Re: Nate1979]
MolaKule Offline


Registered: 06/05/02
Posts: 18202
Loc: Iowegia - USA
I predict the new full synthetic ATF will have a 100C viscosity spec in the 4.X cSt range, a 40C viscosity of 18-20 cSt, and a Brookfield viscosity of 7,500 cP.


Edited by MolaKule (08/22/14 11:36 AM)
_________________________
I do not snore. I dream I'm a Motorcycle. smile

Top
#3462596 - 08/22/14 07:13 PM Re: New GM 8 speed transmission to use new Syn fluid [Re: SteveSRT8]
dailydriver Offline


Registered: 03/14/06
Posts: 8752
Loc: Bucks County, Pa.
Originally Posted By: SteveSRT8
Yep, and rated for over 750 foot pounds of torque!

Faster shifts than a Porsche DCT.


Is a variant of this new slushbox what the automatic Z06es are going to get? shrug
_________________________
2000 Z28 1SC 6 speed 180K miles
4L Motul 300V 0W-40, 2L Motul 300V 0W-20
M1-206 oil filter
Motul Gear 300 75W-90
Red Line D4/MTL in the T56

Top