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DEXRONŽ-HP spec (GMW16974) published #3118711
09/08/13 04:55 PM
09/08/13 04:55 PM
Joined: Dec 2010
Posts: 4,020
Los Angeles, California
Gokhan Online content OP
Gokhan  Online Content OP

Joined: Dec 2010
Posts: 4,020
Los Angeles, California
Here comes the latest in ATF technology -- DEXRONŽ-HP. It is probably backward compatible with DEXRONŽ-VI. It's fully synthetic, possibly PAO-based:

GMW16974

DEXRON High Performance Automatic Transmission Fluid (DEXRON HP-ATF)

Material Description. This full synthetic base oil specification covers DEXRONŽ Automatic Transmission Fluid (ATF) primarily for use in General Motors automatic transmissions. This specification describes, in terms of laboratory and simulated service test results, the requirements for a minimum-performance fluid. The primary requirement is satisfactory performance in normally functioning transmissions under normal and severe conditions. Symbols. Not applicable. Typical Applications. This lubricant is to be used in GM automatic transmissions and other specified applications. Remarks. This specification may involve hazardous materials, operations, and equipment. This specification does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use. This specification uses the International System of Units (SI) as standard per IEEE/ASTM SI 10, except for certain components which are commercially available only in American conventional units. This specification uses the Rounding-Off Method per ASTM E29 for significant figures to determine conformance to specification requirements. Unless otherwise noted, part numbers of this specification refer to those of General Motors Powertrain.

Edition: Issue 1; English
Publisher: GMW
Language: en;
Published Date: 2013-07-01
Document Number: GMW16974
Document Status: Current (Active)


1985 Toyota Corolla LE, 4A-LC engine, ~ 273,000 M
Mobil 1 Extended Performance 0W-20 SN PLUS (PAO-based)
Fram Ultra XG3600 filter (full synthetic), 90430-12031 drain gasket (rubber on aluminum)
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3118718
09/08/13 05:00 PM
09/08/13 05:00 PM
Joined: Jan 2009
Posts: 2,481
Rochester, MI, US, World
Klutch9 Offline
Klutch9  Offline

Joined: Jan 2009
Posts: 2,481
Rochester, MI, US, World
Nice. Now it's only a matter of time before people start calling it DEXTRON HP. Haha.


'11 Fusion SE 2.5L - 83k miles - HK 0w20 syn, Wix XP filter
'08 Sedona LX LWB 3.8L - 129k miles - Havoline HM 5w20, Auto7 filter
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3118721
09/08/13 05:03 PM
09/08/13 05:03 PM
Joined: Oct 2008
Posts: 4,211
Kuwait
Falcon_LS Offline
Falcon_LS  Offline

Joined: Oct 2008
Posts: 4,211
Kuwait
I'm looking forward to this. Dexron-VI was a great improvement over Dexron-III H and was developed mainly for their new 6 speed transmissions. Wonder what the primary application for Dexron-HP will be.


Petro-Canada Duron HP 15W-40 CK-4/SN
99 Explorer: H17W02
00 Pajero: XG9688
01 Grand Marquis: XG2
03 Expedition SSV: XG2
05 Envoy: XG9837
06 XJ8L: C2C41611
07 SRX: XG8765
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3118746
09/08/13 05:35 PM
09/08/13 05:35 PM
Joined: Oct 2011
Posts: 5,091
USA
NHGUY Offline
NHGUY  Offline

Joined: Oct 2011
Posts: 5,091
USA
Yet another fluid auto parts stores have to stock.

Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Klutch9] #3118748
09/08/13 05:37 PM
09/08/13 05:37 PM
Joined: Dec 2012
Posts: 76
Fla
63Marauder Offline
63Marauder  Offline

Joined: Dec 2012
Posts: 76
Fla
I love dextron !


2014 Ford F150 5L. 1963 Mercury Marauder.
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3118866
09/08/13 07:43 PM
09/08/13 07:43 PM
Joined: Nov 2005
Posts: 1,014
Rockwall, Texas
Old Mustang Guy Online content
Old Mustang Guy  Online Content

Joined: Nov 2005
Posts: 1,014
Rockwall, Texas
What do they mean by "minimum performance"?

Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3118867
09/08/13 07:45 PM
09/08/13 07:45 PM
Joined: Nov 2005
Posts: 1,014
Rockwall, Texas
Old Mustang Guy Online content
Old Mustang Guy  Online Content

Joined: Nov 2005
Posts: 1,014
Rockwall, Texas
I guess it refers to the spec, not the fluid.

Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Old Mustang Guy] #3118893
09/08/13 08:14 PM
09/08/13 08:14 PM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline
Global Moderator
JHZR2  Offline
Global Moderator

Joined: Dec 2002
Posts: 42,625
New Jersey
Originally Posted By: Old Mustang Guy
What do they mean by "minimum performance"?


Depending upon what kind of spec line item it is, there always is a minimum or a not to exceed requirement for the various parameters of interest. If they werent bounded, there wouldnt be a point to having a spec...

Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3527995
11/02/14 04:09 PM
11/02/14 04:09 PM
Joined: Apr 2013
Posts: 3,504
Portland, OR
Nate1979 Offline
Nate1979  Offline

Joined: Apr 2013
Posts: 3,504
Portland, OR
Bumping an old thread. I saw an owners manual lists Dexron HP as the fluid for the new Silverado 8speed transmission.

Anyone know any details yet about this fluid?


2015 GMC Sierra 2500 6.0L
2010 Subaru Forester 2.5X
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3528554
11/03/14 09:24 AM
11/03/14 09:24 AM
Joined: Oct 2006
Posts: 2,912
MI, USA
Whitewolf Offline
Whitewolf  Offline

Joined: Oct 2006
Posts: 2,912
MI, USA
GM part #9986333.

Synthetic (real) PAO see OEM/Lube News Jan 7 2013.


My definition of an expert in any field is a person who knows enough about what's really going on to be scared.
~ PJ Plauger
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3666442
03/16/15 12:27 AM
03/16/15 12:27 AM
Joined: Mar 2006
Posts: 9
SE TN
BigLee Offline
BigLee  Offline

Joined: Mar 2006
Posts: 9
SE TN
Just noticed we had some Dexron HP in our parts dept. the other day.
just wondering if anybody had any viscosity or other specs on this fluid yet.
BTW, the U.S. GM part # for quart bottle is 19300536.


Last edited by BigLee; 03/16/15 12:31 AM.
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: BigLee] #3666575
03/16/15 06:52 AM
03/16/15 06:52 AM
Joined: Oct 2006
Posts: 2,912
MI, USA
Whitewolf Offline
Whitewolf  Offline

Joined: Oct 2006
Posts: 2,912
MI, USA
I think I can help you with that.

KV 100C 5.95 cSt, KV 40C 28.1 cSt, BV @ -40C 5,000 cP, CCS -25C 978 MPa-s, CCS -30C 1520 MPa-s.

Minimum spec means that any fluid wanting to be approved as a DEXRON HP fluid must be at least as good as the original approved product in ALL respects.


My definition of an expert in any field is a person who knows enough about what's really going on to be scared.
~ PJ Plauger
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: BigLee] #3666585
03/16/15 07:09 AM
03/16/15 07:09 AM
Joined: Oct 2006
Posts: 2,912
MI, USA
Whitewolf Offline
Whitewolf  Offline

Joined: Oct 2006
Posts: 2,912
MI, USA
Just out of interest what's the price?


My definition of an expert in any field is a person who knows enough about what's really going on to be scared.
~ PJ Plauger
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Gokhan] #3666592
03/16/15 07:15 AM
03/16/15 07:15 AM
Joined: Jul 2014
Posts: 1,544
Paradise of Florida
Greasymechtech Offline
Greasymechtech  Offline

Joined: Jul 2014
Posts: 1,544
Paradise of Florida
At $25/qt, I don't expect it to be in stock in too many autopart stores or wallyworld.

I wonder if its backwards compatible with Dexron-6 for us that ski frigid mountains and travel around Canada/Alaska?????


At what point should a lurker start posting :-)
Re: DEXRONŽ-HP spec (GMW-16974) published [Re: Greasymechtech] #3666635
03/16/15 07:59 AM
03/16/15 07:59 AM
Joined: Oct 2006
Posts: 2,912
MI, USA
Whitewolf Offline
Whitewolf  Offline

Joined: Oct 2006
Posts: 2,912
MI, USA
Originally Posted By: Greasymechtech
At $25/qt, I don't expect it to be in stock in too many autopart stores or wallyworld.

I wonder if its backwards compatible with Dexron-6 for us that ski frigid mountains and travel around Canada/Alaska?????




Yes it is. The only problem is that the more normal DEXRON-VI you have mixed in with it then the more DEXRON-HP benefit you lose.


My definition of an expert in any field is a person who knows enough about what's really going on to be scared.
~ PJ Plauger
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