I think 300K will be a better test.

MB's 722.6 & 722.9 trans fluids are both Dex 3 products.

What makes them different than the other over the counter fluids is MB's one off specification of friction modifiers that are added to that base stock.

The risk/reward using reg Dex3 vs Mb's version is not sufficient to warrant experimentation IMO.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Or, do as I did, changed it myself. Did not have the temp sensor and there have been a lot of posts here since then.

Then went to the dealer to have them check the level, seemed like $75 to do it. Other dealer said they would do the entire job for something like $225.

There is also a DIY tab at the top of the page, and there is one for a 722.6 transmission.

http://www.peachparts.com/Wikka/Trans7226Fluid

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raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

Yes there is risk.....and I would not do anything based on my findings...do your own research.
Here is some food for thought......certain components from Mercedes vehicles became common platform components in Chrysler vehicles when Daimler bought Chrysler and formed DaimlerChrysler. One of those components was the 722.6 trans. which is in my 98 E300. Its most notible use was in the CrossFire produced here in the US Chrylser plant. When that transmission was fitted into a US vehicle built in a US DaimlerChrysler plant it was filled with a US made Fluid. That "Factory Fluid" was Mopar ATF+4 which was developed after Daimler took over. Mopar AT+4 and other Mopar products are or were owned by the DaimlerChrysler Motor Company.
The German company supported fluids made to their specs., produced in Germany/Europe for European produced vehicles (Fuchs and Shell Europe fluids). The US production supported the US produced Mopar fluids that DaimlerChrysler owned.

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FRED

Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K

All of what you say is true. However, please consider this. Up to early 2001, Ford used the regular green coolant in the Powerstroke engine. Late 01 and on, they used the Yellow stuff which is Zerex G05. Why? Because G05 does not need you to add the FW-15 additive to prevent cavitation and all that other nice stuff. Well great. Why the gold stuff when International, the makers of the T444E engine which is the powerstroke, prefers to use a different coolant? Because it works better from a fleet standpoint. The Red ELC stuff has way more nitride stuff in it which is what is recommended. However, that means they have to have another type of coolant that nobody else uses in the Ford garage. So, just because Chrysler uses it doesn't mean that it is automatically the best choice. It might be also because they will use it for other cars. IOW, it works but it isn't the best but, OTOH, they don't have to carry one special fluid for that car.

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

Didnt mean to purport to be a fluid or a trans expert, just pointing out data on the tech forum where this has been discussed ad nasuem....One could also question if Mopar AT+4 IS Chryslers private labeled MB fluid or that the Chrysler built trans is different internally than that built by MB....I have neither the time or deisre to research either, the cost difference and convienience involved using the approved fluid makes it immaterial to me.

Many have tried to prove other products are compatible or similar; no one has proved that they are the "same" unless produced by Shell/Fuchs who is OEM for MB. Member 300B comes to mind if anyone is interested in reading. ILUVMILS may have posted a doc listing another alternative fluid to MB & S/F; I cant recall if that was an emergency product or MB approved alternative.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Yeah, well. we'll see. I put a very good quality ( V hi mi ) dextron product in a 221K tranny. 10K in, it never shifted better.

I swapped the red oem rear oil with Lucas. Will it fail!? ( well, it might the rear has a heckuva lot of backlash)

Wouldnt get too critical on these frankly. Unless someone can prove me wrong.

Gene - Thats appropriate for your trans, its not a 722.6 like the 97-99's have. You've got the 722.4 that was intended to be fed Dex 3.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

aklim......yes I am taking a risk that something in the 722.6 trans used in some of the US produced DaimlerChrysler vehicles may have been modified.
But if no one is willing to try the "other fluid" that Daimler seems to find OK to use in these transmissions on this side of the pond we will never know.
I am not one to follow a manufacturers recommendations blindly especially one that says "never change your transmission fluid" its good for the "life time" of the vehicle. All of us here have more intelligence than that !
From conversations with some ex daimlerchrysler techs I was willing to try it and see what happens. I think the risk is minimal. I will let you all know if my 722.6 trans fails

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FRED

Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K

I am reading this about oils and fluids yes there are better then other type lubricants but a quality lubricant is probably as good as the next quality lubricant.

I was baffled about not using Castrol TXT 505.01 in my 05 2.0 PD. I was filling up my MB with Dino and in front of me was a guy driving an 04 2.0 PD. I kindly asked how he like his car he said he loves it. I asked him how many miles and he said 135000 i said wow. I asked what type of oil do u use he said he has been using Amsoil 505.01 up untill 85k miles because the guy he got his oil from stoped selling amsoil and stocked Elf instead an online store. From that moment on I had more faith in amsoil and use it in my PD.

What can a fluid do to a transmision? What can be in it what :sperm:

IMO, you are taking the risk that the Chyrsler part of DaimlerChrysler (where the Chrysler is silent) is using a fluid that the rest of Chrysler is using but not up to Daimler's specs. Just as Ford uses Zerex G05. It is convenient for them not to have different fluids. I don't think the trans itself is modified tho.

We should not follow the directions blindly. However, we should also not defy them "just cos". If I am going to defy their recommendations, I need a good reason. For instance, if the fluid you want to use is $1 and the DCX fluid is $10, that might be a good reason. However, if the difference is slight, what is the point. I changed my fluid at 60K from the standpoint that fresh fluid cannot hurt. Wrong fluid is a whole different ball game.

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

I would say "A lot". If the fluid is wrong, it could cause premature wear.

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

One of the tech's on the tech forum made a comment the other day that kind of went like this: "I love these sealed for life trans I have been replacing a lot of them at 100k-125k miles and making good money."

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

1999 S500 with 722.6 Automatic Transmission Filled for life?

The Automatic Transmission fluid is said to be filled for life. We never specified who's life. (Yes, they actually wrote that in this!-DG)

__________________
01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow

How much do you want to bet life means:

Factory warranty 4 years or 50k miles.
CPO warranty to 100k miles.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200