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 Post subject: AW4 ATF type??
PostPosted: Fri Nov 14, 2008 6:55 pm 
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Im stumped. Ive found nothing but conflicting information regarding the proper ATF fluid to use in the AW4 trans. Ive called tons of local (and not so local) Jeep dealerships and even a few trans shops and its almost a 50/50 split. Some say ATF+4, some say Dexron III. Any thoughts?


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 Post subject: Re: AW4 ATF type??
PostPosted: Sat Nov 15, 2008 9:48 pm 
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ATF+4 is a new thing that came out well after the AW4 was being put in the jeep so I doubt its what should be used.

edit
just checked the owners manual for my 99 XJ and it reads as follows

recommended fluid
4.0 engine
MOPAR ATF fluid or equivalent labeled DEXRON II or MERCON fluid

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 Post subject: Re: AW4 ATF type??
PostPosted: Sat Nov 15, 2008 10:25 pm 
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Isn't ATF (4, +4) backwards compatible? Meaning, if you put a newer blend in an older transmission, it's o.k. but putting an older blend in a newer transmission not so good? Or am I thinking of coolant...?

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 Post subject: Re: AW4 ATF type??
PostPosted: Sat Nov 15, 2008 11:13 pm 
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Cowboy wrote:
Isn't ATF (4, +4) backwards compatible? Meaning, if you put a newer blend in an older transmission, it's o.k. but putting an older blend in a newer transmission not so good? Or am I thinking of coolant...?

This makes perfect sence to me, but I couldn't say for sure. My 96 owners manual also says dexron/mercon. Oils are constatly getting better, so it would make sense to me that you could add a newer oil with more/better additives than the oil previously supplied. But if you want to just play it safe then go with dextron/mercon.

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 Post subject: Re: AW4 ATF type??
PostPosted: Sun Nov 16, 2008 11:01 am 
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I found this TSB issued by AllData, kinda interesting...

A/T - ATF + 4 Fluid Usage

NUMBER: 21-014-07

GROUP: Transmission

DATE: October 16, 2007

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 21-010-06, DATED APRIL
14, 2006, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES THE ADDITION OF THE ASIAN WARNER
(AW4) TRANSMISSION AND ADDITIONAL MODELS AND YEARS.


SUBJECT:
Automatic Transmission Fluid Usage ATF+4 (Type M59602)


MODELS:

1989 - 1995 (AA) Spirit/Acclaim/Lebaron Sedan

1989 - 2003 (AB) Ram Van/Wagon

1989 - 1993 (AC) Dynasty/New Yorker/New Yorker Salon

1989 - 1993 (AD) Ram Truck

1989 - 1994 (AG) Daytona

1989 (AH) Lancer/Lebaron GTS

1989 - 1995 (AJ) Lebaron Coupe/Lebaron Convertible

1989 - 1990 (AK) Aries/Reliant

1989 - 1990 (AL) Horizon/Omni

1989 (AM) Diplomat/Gran Fury/New Yorker fifth Avenue

1989 - 2004 (AN) Dakota

1989 - 1994 (AP) Shadow/Sundance

1990 - 1991 (AQ) Maserati

1990 - 1993 (AY) Imperial/New Yorker Fifth Avenue

1994 - 2003 (BR/BE) Ram Truck

2004 - **2008** (CS) Pacifica

1998-2003 (DN) Durango

2002 - **2008** (DR/DH/D1) Ram Truck

2007 - **2008** (DC) Ram 3500 Cab Chassis

1995 - 2000 (FJ) Sebring/Avenger/Talon

1996 - 2000 (GS) Chrysler Voyager (International Market)

2004 - **2008** (HB) Durango

**2008 (HG) Aspen**

1995 - 2000 (JA) Cirrus/Stratus/Breeze

2007 - **2008** (JK) Wrangler

2001 - 2006 (JR) Sebring Sedan & Convertible/Stratus Sedan

2007 - **2008** (JS) Avenger/Sebring/Sebring Convertible

1996 - 2000 (JX) Sebring Convertible

**2007 - 2008 (KA) Nitro**

2002 - 2007 (KJ) Liberty

**2008 (KK) Liberty**

**2008 (L2) 300C (China)**

1993 - 2004 (LH) Concorde/Intrepid/Vision/LHS/New Yorker
/300M

2005 - **2008** (LX/LE) 300/Magnum/Charger

1996 - 2000 (NS) Town & Country/Caravan/Voyager

1995 - 2005 (PL) Neon

2002 - 2003 (PG) PT Cruiser (International Markets)

2001 - **2008** (PT) PT Cruiser

1997 - 2002 (PR) Prowler

2001 - 2007 (RG) Chrysler Voyager (International Markets)

2001 - 2007 (RS) Town & Country/Caravan/Voyager

**2008 (RT) Town & Country/Grand Caravan/Grand Voyager
(U.S. & International Markets)**

1997-2006 (TJ) Wrangler

2001 - 2004 (WG) Grand Cherokee (International Markets)
Vehicles equipped with Gas engines

1999 - 2004 (WJ) Grand Cherokee

2005 - **2008** (WK/WH) Grand Cherokee

2006 - **2008** (XK/XH) Commander

1989 - 1995 (YJ) Wrangler

**1989 - 2001 (XJ) Cherokee**

**1989 - 1993 (MJ) Comanche**

1996 - 1998 (ZG) Grand Cherokee (International Markets)

1994 - 1998 (ZJ) Grand Cherokee/Grand Wagoneer
NOTE :**AWA (Asian Warner) transmission are now included in this Service
Bulletin. ATF+4(R) is recommended for AW-4 (Asian Warner) transmissions**


NOTE :This Service Bulletin DOES NOT apply to Sprinter transmissions,
Crossfire transmissions, MK/PM vehicles equipped with Continuously Variable
Transmission (CVT) and WG vehicles equipped with a diesel engine (sales code
ENF) and a W5J400 or NAG1 transmission (sales code DGJ).

DISCUSSION:

ATF+4(R) - (Type 9602) is being used as factory fill for Chrysler Group
automatic transmissions. ATF+4(R) is recommended for all vehicles equipped
with Chrysler Group automatic transmissions EXCEPT FOR THOSE LISTED IN THE
NOTE ABOVE.

NOTE :ATF+4(R) must always be used in vehicles that were originally filled
with ATF+4(R). DO NOT USE ANY OTHER FLUID.

NOTE :ATF+4(R) is backward compatible with ATF+3, ATF+2, and ATF+.
Additionally, ATF+4(R) can be used to top off vehicles that used ATF+3,
ATF+2, or ATF+.

NOTE :If ATF+4® is used to service models originally filled with ATF+3,
ATF+2, and ATF+ the fluid maintenance schedules listed for that model does
not change. The service interval currently in effect for a given model
should continue to be followed. Refer to the Service or Owners manual for
maintenance schedule directions.

In general terms, If ATF+, ATF+2 or ATF+3 was the recommended fluid, it is
now recommended to use ATF+4®

BENEFITS

^ Better anti-wear properties

^ Improved rust/corrosion prevention

^ Controls oxidation

^ Eliminates deposits

^ Controls friction

^ Retains anti-foaming properties

^ Superior properties for low temperature operation

FLUID COLOR

Mopar ATF+4(R) has exceptional durability. However, the red dye used in
ATF+4(R) is not permanent; as the fluid ages it may become darker or appear
brown in color. ATF+4(R) also has a unique odor that may change with age.
With ATF+4(R) fluid, color and odor are no longer indicators of fluid
condition and do not necessarily support a fluid change.


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 Post subject: Re: AW4 ATF type??
PostPosted: Sun Nov 16, 2008 11:28 am 
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But then I found this.. http://www.allpar.com/fix/trans.html


""Is ATF+4 suitable for all Chrysler cars or just a few? (and Jeep exception)

This is from the Center for Quality Assurance site (as of July 24, 2008): “ATF+4® is approved for use in older transmissions and is currently utilized in newer Chrysler®, Jeep® and Dodge® vehicles. The previous MOPAR ATF+3® formulation was discontinued in 2005 and ATF+4® is recommended for all transmissions filled with ATF+3®.”

There is an important exception for Jeep owners. As Danny noted, "The Jeep AW-4 (Aisin-Warner) transmission should use Dexron III." Greg, a DCX tech, wrote that the AW4/AX4 transmission was used on 6-cylinder Jeep Cherokees through the end of production, and on the first six-cylinder 1993 Grand Cherokees (built in 1992 and 1993), but on the Grand Cherokee it was phased out midway through the 1993 model year. This transmission requires Dexron, while the 42RE / A500SE which replaced the Aisin-Warner transmission midway in the 1993 model year needs ATF+4. Again, if you are confused, you may just want to try one of the new universal fluids that is both Dexron and ATF+4 compatible.""


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 Post subject: Re: AW4 ATF type??
PostPosted: Sun Nov 16, 2008 5:46 pm 
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I think just to play it safe I would just use dexron.

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 Post subject: Re: AW4 ATF type??
PostPosted: Sun Nov 16, 2008 6:19 pm 
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use the best, amsoil atf. full synthetic. http://www.amsoil.com little pricey but worth it.

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 Post subject: Re: AW4 ATF type??
PostPosted: Mon Nov 17, 2008 12:04 am 
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Ok, so I did a little more research and found out that in 2006 a TSB came out that specified transmission fluid specs for various cars. In this TSB it specifically stated that Jeep AW4s should take Dextron instead of ATF+4.

The next year, in 2007, the bean counters decided to switch everything around and put out a bulletin that stated ALL chysler cars should take ATF+4 including the XJs. The AW4 isnt a chrysler transmission tho, its an aisin-warner transmission made for toyota suvs that AMC decided to borrow back in the day. Supposedly, aisin-warner still recommends Dextron fluid for all of their automatic transmissions.

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 Post subject: Re: AW4 ATF type??
PostPosted: Tue Nov 18, 2008 12:07 am 
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Here is a very good reason to use Dextron2 or Dex3 vs ATF+4 in the AW4 - ATF+4 cost more than double the older fluid.

And Amsoil, while a good product, is FAR from the be-all, end-all some of it's proponents would have you believe... plus it costs a buttload.

Use the original fill, unless superceded through a bulletin, OR if modified use the fluid your trans builder recommends, keep the trans from sucking in water with appropriate, and tall enough, venting (mods needed in some trans), and cheange fluid and filter at a reasonable fequency, and you'll be fine.

Regardless of fluid... if you want the trans to live a long happy life, two things are critical: keep fluid temp down around 175 or so with an external cooler (WITH a thermostatic bypass), and keep water out of the trans fluid. In other words, don't run any trans with a low vent (or internal vent only) underwater.

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