Transmission, differential and transfer case fluid
I am thinking to change Transmission, differential and transfer case fluid.
I called BMW dealer for the correct fluid and I hear that I can use castrol dexron VI for my transmission. However, for differential (1 liter for front and 2.5 liter for rear)and transfer case, he told me the fluids are only see in BMW dealer shop.
1. I would like to ask you whether you have any experience with castrol dexron VI (9 quarts) in your auto transmission.
And, after searching, I found a lot of people using Red line 75W-90 for their differential and Redline D4 ATF for their transfer case.
2. The dealer told me that front and rear differential fluids are different. However, can I use Red line 75W-90 for both differential?
3. Can I use Redline D4 ATF for my transfer case?
I already spent a lot of time, however, it is difficult to find a consensus.
I appreciate any comments about my questions.