[Bandarof]

Which redline Transmission and Diff fluids should I use for my 335??

[David9962000]

Contact them at www.redlineoil.com

[FCP Euro]

^^^ Agreed. I am not sure what the BMW uses. I would think it would be kind of gear oil like 80W-120 or something like that.

[chaz58]

Which transmissin?

If you have a MT, don't use the AT fluid (even though Redline will tell you you can). It will shift better with the MT (although may be a bit notchy when cold - I haven't had the problem).

[Bandarof]

Well yes definately Manual, but redline have two types MT and MTL; it seems the MTL is for 4X4s so I guess I'm gonna go with the regular 75W 140.

Same oil for the diff??

I have only 20K kilos on my car but I do hear noise from the diff and didn't shift correctly from 3rd to 4th a couple of times while racing with friends. SO I believe I need the after break-in oil change for Tranny and diff.

So 75W 140 will work for both tranny and diff??

[AlanAZ]

Royal Purple Synchromax seems to work well in E90 MTs, according to a number of posts I've read here. I'm considering changing to that the next time I have my car in the air.

UPDATE: I've swapped out the Synchromax. The great shifting it provided only lasted a few months, then was about the same as the factory fluid w/60K miles on it.

I put in Redline D4 ATF for use in the Phoenix extremely hot climate. According to Redline tech support, D6 ATF is closest viscosity to the factory fluid and is recommended, espec. in colder climates (D6 is about 10% thinner than D4, so not much difference -- Synchromax is a heavier viscosity than even the D4.)

[usc335]

Originally Posted by AlanAZ

Royal Purple Synchromax seems to work well in E90 MTs, according to a number of posts I've read here. I'm considering changing to that the next time I have my car in the air.

+1 I originally used Redline, but shift notchiness when cold and warm drove me nuts. I switched to Royal Purple Synchromax and it's much better!

[ECSTuning]

We have a selection of transmission and diff fluid available that can be found here on the website.

Transmission:

http://www.ecstuning.com/BMW-E92-335...aign=postreply

Diff:

http://www.ecstuning.com/BMW-E92-335...aign=postreply

[rambalu80]

Can someone please tell me how many quarts of oil is needed for the transmission and the rear diff?

[Bandarof]

I changed my transmission oil today with redline 75W 90 and it's so much better!! Also the average fuel consumption increased by 200kilometers!!

[ECSTuning]

Originally Posted by rambalu80

Can someone please tell me how many quarts of oil is needed for the transmission and the rear diff?

The E9X 328i transmission requires roughly 3 quarts of fluid We have those available here for your application:

http://www.ecstuning.com/BMW-E90-328...aign=postreply



& your car's rear diff take's roughly 2 quarts of fluid & those can can be found here:

http://www.ecstuning.com/BMW-E90-328...aign=postreply


Feel free to shoot me a PM if you have any other question! I will do my best to help where ever I can!

Cheers,
Joe

[Bandarof]

Originally Posted by Bandarof

I changed my transmission oil today with redline 75W 90 and it's so much better!! Also the average fuel consumption increased by 200kilometers!!

Actually the average fuel consumption improved by proximately 50 kilometers, after I let it run for a couple of weeks now it reads 405 Kilos with a full tank of unleaded95 as opposed to 350...

Great stuff gonna change the diff fluid very soon..