Hi guys what brand of fluid do you use in the rear diff when replacing the dirty stuff ....
Mines a 2018

I use this:

https://www.fcpeuro.com/products/syn...castrol-1543c9

******They were out of stock of the Castrol when I tried to order it so I ended up using Motul, which was considered an authorized alternative to the Castrol. I got it from FCP Euro as well. It works well. The original in the differential wasn't really that dirty quite honestly.

sweet! Sounds good man Happy Wrenching! Haha

How many bottles to fill?

2 but grab 3 just incase. There’s a drain and fill plug.

you drain first but be sure to loosen the fill plug first*. Cap and torque down the drain plug then fill until fluid leaks from fill plug. Enjoy!