I use ATF+4

 

Funny, just did the standard drain and fill at oil change.
Valvoline Max-Life ATF at wally world, $18 bucks per gallon........

 

Do you have this TSB? I've used Castrol Transmax ATF+4 in mine for the past 30,000 miles with no issues.

 

Spec's do say .. Synthetic Dexron III® Automatic Transmission Fluid may be substituted.

The confusion is from some of the NAG1 used different torque converters. Check out the SRT8 forums for details.

 

TSB is here

http://www.wkjeeps.com/TSB/tsb_wk_2101407.pdf

 

so what do i put in my 07 crd Trans lol?

 

07 is same as 08

W5A580
4-6 qts. (service)
9.5-10 qts. (overhaul)
Automatic Transmission Fluid Mopar® ATF +4, type 9602 (or equivalent)

Filter: (internal, flat) p/n 52108325AA

Schedule A 100,000 mi.
Schedule B 60,000 mi.

 

Hi Gents
I hope you can all see the point I am trying to make.
Chrysler felt the need for a Mopar, Nag1 specific fluid to MB spec 236.12 for all Nag1 transmissions apart from the Grand Cherokee wk Nag1. If ATF+4 is suitable then why the other fluid?
The TSB specifically states NOT to use ATF+4 in every other NAG1. They felt it important enough for a TSB.

All very fishy to me.
Thanks you for all replies so far.

Brit.

 

Hi Gents
I hope you can all see the point I am trying to make.
Chrysler felt the need for a Mopar, Nag1 specific fluid to MB spec 236.12 for all Nag1 transmissions apart from the Grand Cherokee wk Nag1. If ATF+4 is suitable then why the other fluid?
The TSB specifically states NOT to use ATF+4 in every other NAG1. They felt it important enough for a TSB.

All very fishy to me.
Thanks you for all replies so far.

Brit.

thought this was covered... some NAG1 used different torque converters.

SRT and CRD use different fluid for this reason. SRT and CRD are the same torque converters.

 

Which trans do you have?

Check with your vin here and click equipment listing on the left.

 

Hi bromarc.
Thank you for the link. As we thought it has the W5J400 Transmission. Is this Chrysler designation for the Merc 722.6?
I also noticed the build list states I have Quadra Trac. My Jeep has Quadra Drive 2. All UK CRD came with QD2, there were no other options.
Brit.

Hi
I am editing my old post to correct an error i made. Will stop any confusion should a WH search appear.

The export (WH) in UK came with QD2 as standard up until the face lifted version in 2008. After that it was standard on the 'overland' model and an option on others. For example my 2008 LTD has QT2.

 

From that link, mine says "5-Spd Auto W5J400 Transmission."

 

W5J400 (for the CRD) was built in Germany. I believe there is a different torque converter and eventually Chrysler realized that and changed the fluid volume requirement (or at least the dipstick measurement), but stupidly only designated the change for the WH (export) with the CRD.

This is the graph that most have agreed should be used when checking ATF levels. I've also seen that using ATF+4 is correct.

 

Hi Bromarc.
I found this about the Torque Converters.
http://www.atraonline.com/gears/2008/2008-03/2008_3_38.pdf

I noted an exception for the 3.0CRD Diesel.
'The Mercedes converters are available
with 9", 9¼" and 10-3/4" bolt
circles. Chrysler converters (with the
exception of the 3.0L diesel, which will
be available in the Grand Cherokee in
2007) use a 10-3/8" bolt circle'.
Have I misread this?

Could you ask your Transmission Specialist to look at the TC and establish if it is Merc' or Chrysler?
Brit.

 

I'm glad they keep telling us what it's not, but never specifying what it actually is. And I don't plan on tearing the Jeep apart enough to get to the TC for quite a while, but that'll be a good thing to check when I do eventually do that.

I have no idea what the physical traits are, but I'm seeing the TC PN is 05166593AA for W5J400 and diesel engine sales codes, which should help in a search.
Additional TC PNs I'm seeing are:
05174299AA for the 6.1 SRT
68003092AA for the 3.7 V6
04736352AB for the 4.7 and 5.7 V8s

 

The W5A580, W5A380, and W5J400 are in the family.

I have a 2008 CRD with a W5J400 which takes Mopar ATF+4.

The CRD and the SRT have the same torque converter and both use the same fluid. The same NAG1 with other engines may have a different torque converter and use different fluids.

So... Valvoline ATF + 4™ is a uniquely blended automatic transmission fluid that meets ... is for use in all applications specifying Mopar ATF+4 or Type MS-9602 fluid.

Link here:
http://content.valvoline.com/pdf/atf_+4.pdf

Also some where I do remember ...
Spec's do say .. Synthetic Dexron III® Automatic Transmission Fluid may be substituted.
Not the best but it will work.

I gets even better measuring the fluid level.

 

Hi Tango.
Thank you for the help and patience.
Do you think the Torque Convertor differences are down to where the Transmissions are manufactured? What I mean is if Chrysler made it in Indiana or Mercedes made it in Germany.
I just can't understand why every Transmission fitted to the 3.0CRD OM642 Engine needs a Mercedes spec fluid with only one exception, that being the Grand Cherokee. Why did they fit a different TC to just one 3.0CRD Vehicle type?
Brit.

 

I had a thread about this a long while back. Merlin clarified the issue in the different fluids. The transmission fitted to the CRD comes with the engine from Germany and with German spec fluid. Chrysler also builds its version of this same transmission for which it specifies atf+4. Builderbill says that all of these 722.6 are interchangeable in parts. In short, Merlin says that the Mercedes spec fluid is softer and smoother shifting vs the Atf+4 is a bit snappier shifting. If you have the correct amount of fluid in your transmission, and do a drain/fill, you should add about 4 quarts.

 

I had a thread about this a long while back. Merlin clarified the issue in the different fluids. The transmission fitted to the CRD comes with the engine from Germany and with German spec fluid. Chrysler also builds its version of this same transmission for which it specifies atf+4. Builderbill says that all of these 722.6 are interchangeable in parts. In short, Merlin says that the Mercedes spec fluid is softer and smoother shifting vs the Atf+4 is a bit snappier shifting. If you have the correct amount of fluid in your transmission, and do a drain/fill, you should add about 4 quarts.

I'm with this. ATF +4 is no way going to cause a catastrophic failure.

There's plenty of CRDs running around with their "nag1" filled with it with high miles on them, mine included. Didn't even notice a change in shift quality when I did my change, either. (which I did at 100k miles for the first time. Now at 156k and will do another drain and fill soon) This has been the best shifting auto trans I've ever had.

 

Torque converter difference is probably to help in driveability qualities because of the difference in torque curves etc., or something related to the engine being a diesel and its effect on the drivetrain.

 

Hi fishinbama.
I wonder what happened to Merlin. I have read some of his posts and he knew his stuff.
Yes I agree. The way I see it the 3.0crd Transmissions were made in Germany. They were factory filled with Merc spec fluid. I do not believe Mercedes had a separate facility for filling Jeep bound Transmissions with ATF+4. I can only assume that the early Merc spec fluid is compatible with ATF+4 although I doubt any Mercedes owners will be using ATF+4 in their Transmissions. My Grand Cherokee will be getting a Merc spec fluid.
Brit.

 

CRD Torque Converter

This is a pic of my spare transmission, it is out of a 2006 WH export Grand built in AUSTRIA.

As you can see it has the Mercedes-Benz logo on it with part number A2092500802

Can't see why the T/C would be different in the North American market if the engine & trans were shipped as one unit from EU.

Fluid recommended in my owners manual is "Shell 3403"
I use Valvoline Maxlife synthetic.

 

Thank you for all the replies gents. I appreciate you all taking time to help.

Brit.

 

Just had my NAG1 in my 08 CRD rebuilt... They put ATF+4 in it.

 

Mine is a wh crd qd2 2007 was built in Austria.
I got to the 100k miles so asked my dealer to exchange the gearbox oil.
He told me he put Chrysler AT4.
After reading this thread i checked and its specified in the manual to use Shell 3403....
Now, after reading this thread, its not clear to me whether i should ask him to drain and refill with 3403 or not...i was told that in order to replace the oil, the dealer would have to do that action twice, i.e. to drain put the new one, drain again, and put the new...im sure he would not be happy to do that and would probably claim that using at4 is ok and there is going to be some unpleasant discussion tomorrow.
Any suggestion?

 

It specifies to use Mopar ATF+4.

This is NOT saying use any fluid that meets Chrysler AT4 standard, it means use only Mopar ATF+4.

That is what I use. I found if I buy 3 jugs (5 liters each), so 15 liters, I can get it for just under $5 a liter.

There is also a good video on you tube on how to disconnect the front line at the cooler and drain it until it's clear. Took about 8 liters.

 

Thanks. Sorry for not being clear, I did not mean any standard. The dealer told me he used "Chrysler ATF+4".
My question here was whether I should insist on draining that one and refill it with the Merc SHELL 3403 (which is what specified in the vehicle manual).
The dealer said to me that besides the color those 2 oils are actually identical. He told me that the WK 3.7 petrol from 2010 has the very same Mercedes gearbox (NAG1) as the WH CRD has and there the official requirement is "Chrysler ATF+4". The question is whether using the SHELL 3403 is not better, would have a smoother shift (as i read in some other threads), would keep the gear for longer and so forth.

 

You can use either oil if he mean "mopar" when he says Chrysler. That is the mopar atf+4 or the 236.10 which cost way more.

First off, the transmission are similar, not the same. They have different torque converters.

Chrysler ATF+4 is not an oil unless he is referring to Mopar which is the NEW now approved oil.

mopar is "now" recommended. This was updated since your manual came out back in 2009.

did it look like this?

For MB 236.10 spec approved are:

Mercedes-Benz Getriebeöl MB 236.10 Daimler AG, Stuttgart/Deutschland
MB 236.10 Flüssigkeitsgetriebeöl (ATF) A 001 989 21 03 Daimler AG, Stuttgart/Deutschland
RAVENOL ATF M 6-Serie Ravensberger Schmierstoffvertrieb GmbH, Werther/Deutschland
Shell ATF 3403 M-115 Shell International Petroleum Company, LONDON/UNITED KINGDOM
Shell SPIRAX S4 ATF 3403 Shell International Petroleum Company, LONDON/UNITED KINGDOM

 

ATF+4 will work just fine for your transmission. If you decide on 236 fluid you should know that 236.10 is an old standard and has been superceded by 236.14 and maybe even others by now.