mis3

I read that Shell ATF-134 is in the MB arproved list.

For my transmission service last time, I bought the 236.14 ATF from the dealership for $26 CAN per liter. I read here that some of you can get Shell ATF for much lower price.

I am wondering if MB ATF and Shell ATF are comparable products (one is just as good as the other)? Also, does anyone know who makes the MB ATF?

Glyn M Ruck

Shell ATF-134 is approved. It is as good as any other approved product. Shell makes the new Blue 236.15 product for the 722.9 Plus transmission. A number of companies have produced the Genuine fluid in the past including Fuchs.

mis3

If Shell-134 is as good as MB branded ATF, I would try get Shell locally. All US online stores I tried do not ship to Canada, something to do with no fluid across the border.

How about mixing MB ATL with Shell-134? I ask because I do only pan-flush. So, I will mixing MB ATL and Shell ATL.

In fact, I did the last pan flush exactly a year ago. I would like to go for another pan flush but it has only been 16k miles. I miss how smooth the car was after the last pan flush.

mis3

Is it OK to mix MB ATF with Shell 134?

I would guess it should be fine because for my last transmission (722.6) service, I did 2 pan flushes (3k miles apart) in a row to push in more 236.14 fluid. So, I have both 236.10 and 236.14 fluids in my transmission currently.

Glyn M Ruck

Yes it's fine. They are designed to be fungible & miscible. There is only one additive system approved never mind who you buy it from.

Only the new blue 236.15 fluid is not reverse compatible.

mis3

I know the recommendation is every 39k miles. How often do you guys change your ATF?

As I mentioned before, my last pan flush was just 16k miles ago. I am anxious for another pan flush.

Rudeney

I think every 16K is overkill, maybe every 30K would be a good plan for "severe service" conditions.

mis3

I think I am going to get Shell ATF134 locally. Shell is about 25% of the MB branded ATF.

ATF for my 722.6 is now a mixture of MB branded 236.10 and 236.14 (mostly 236.14 because I did 2 pan-flushes last year). Shell ATF134 would be a 3rd fluid, kind of. Sure hope all these fluids would work well together.

The reason I am going with Shell because of my friend's car. She has a 2006 C230 Sport Sedan and never had transmission service done on the car. Her transmission should be 722.6 as well so going with Shell would save me a lot of money.