Shell 134 on 722.6 Tranny - Mercedes-Benz Forum

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post #1 of 12 (permalink) Old 10-13-2013, 12:38 PM Thread Starter
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Shell 134 on 722.6 Tranny

Hi Guys,

This is my first post on Benzworld and I apologize in advance if I did not post in the right place.

I noticed there is a lot of confusion regarding what type of fluid to use on the 722.6 tranny.

I have a 97 e420 that I am going to be doing a full flush on, but I would like to save some $$ if possible.

I would love to go with the Shell 134 atf which a lot of you guys say will work fine, but when I am on ebay and I look at all compatible vehicles, it says that it will not work on 97 e420.

Can someone more experienced with this model transmission please give me some clear advice?

Thanks so much guys
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post #2 of 12 (permalink) Old 10-13-2013, 09:12 PM
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post #3 of 12 (permalink) Old 10-13-2013, 11:24 PM
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I recall a good topic about 134 in W210 section. Started by G-AMG?
But I look at it this way. Shell cost about $10/liter - MB ATF about $20.
So with 9l capacity the $90 price different divided by expectable 100k miles of service makes 0.09 CENT per mile.
You can save more money with less risk filling it up with regular.
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post #4 of 12 (permalink) Old 10-14-2013, 02:05 PM
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Quote:
Originally Posted by DrX View Post
Actually, your 722.6 is an early one and the oil spec for it is 236.10. Not the 236.14 that Shell 134 meets. If you change the above link to show you the 236.10 spec. you will see that Shell 3403 meets your spec. The newer spec oil is supposed to be backward compatible but it has lower viscosity, I am told. The early 722.6 transmission had a bushing with a wear problem, and I would expect higher viscosity oil to be more protective of this bushing, but this is conjecture on my part.
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post #5 of 12 (permalink) Old 10-14-2013, 02:58 PM
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Just some thoughts in no particular order...

1. Posting in the general section about a specific car often leads to varying advice, much of which may not be terribly useful or applicable. (The W210 forum in the sedan section had a wealth of information on many topics, this one -- exhaustively -- included.)

2. Relying on ebay to tell you the appropriate products for your car is like relying on your veterinarian to give you advice about caring for your lawn. Might be accurate, might not...and how can you tell? (The stickies in the aforementioned W210 forum have the link to the official spec list for operating fluids...)

3. The spec for all 722.6xx transmissions through the end of the W210 model run was 236.10. It appears this fluid is no longer being made, and in any event, it was superseded by 236.12 fluid, and both were superseded by 236.14 fluid, which is backwards-compatible with both of those fluids.

4. As noted in this thread, Shell 134 ATF complies with MB spec 236.14. It is thus perfectly suited for your car.

5. There is a thread in the aforementioned W210 forum noting that if you live in driving distance to a Shell distributor (link in the thread to look one up, or of course you can hit the internet superhighway) you can get a case of the fluid often for less than $5/USQ.

6. I agree with you that a full fluid exchange is the way to go. There are details on how to do that in the DIY stickies in ... you guessed it, the aforementioned W210 forum.

Good luck. Hope to see you in the W210 forum.

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post #6 of 12 (permalink) Old 10-14-2013, 06:27 PM
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I drive a 2004 w209 with a 722.6 transmission.

When I planned to do a transmission service last year (Feb, 2012), 236.10 ATF was no longer available. Since there is no drain plug in my transmission, my indie as well as the dealership would only do pan flushes. I was concerned to mix 236.10 and 236.14 fluids in my transmission. I expressed my concerns in a MB forum which sparked a debate among various members. Since there was absolutely no way for me to get the old ATF at the time, I finally decided to do 2 pan flushes in a row (5k km apart) so to push in more 236.14 fluid. End result was fantastic, the transmission started to shift better right away. So, my experience told me that 236.14 ATF is indeed applicable to 722.6 transmission and the 2 ATF are indeed compatible to each other.

As for Shell-134 ATF, I would definitely consider for my next fluid change.

Last edited by mis3; 10-14-2013 at 06:29 PM.
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post #7 of 12 (permalink) Old 10-14-2013, 06:36 PM Thread Starter
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Thanks guys for all of your responses, I really appreciate everyones help and I will go to my Shell dist and pick up some shell atf 134..

Also next question will be in the proper section.

Sorry for the confusion.
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post #8 of 12 (permalink) Old 10-14-2013, 08:30 PM
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I'm pretty sure Shell 134 is recommended.

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post #9 of 12 (permalink) Old 10-14-2013, 08:33 PM
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I prize W210 to be one of the best organized section on this forum, but the transmission in question was installed on several models, not just W210, so I don't feel this section is not appropriate. We are forced to post here about diesels anyway,
SINCE WE DO NOT HAVE DESIGNATED DIESEL SECTION..
Coming back to ATF - I just bought W210 for my brother and am getting it fully serviced for him.
Went to local indy warehouse and they sold me Febi ATF Nr. 22806
MEETING 236.10
Don't have bill on me, but it was about $10
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post #10 of 12 (permalink) Old 10-15-2013, 09:01 AM
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I could not get the 236.10 ATF at the time and while I did find some in online stores, they would not ship to Canada. Also, I found out that some stores would list 236.10 in their sites but they actually carried 236.12 or 236.14.

What swayed my decision last year was even if I could find 236.10, I would have the same challenge the next time. I would have no choice but to move to 236.14 eventually.
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