Originally Posted by squidzilla

Last night I put the 5mt X5 up on four jack stands (6 ton) and did the transfer case fluid and the rear differential. I did not have a pump and for the transfer case I used a dollar store syringe turkey baster. This works so much better than an actual turkey baster. The thick needle lets you add or remove lots of thick fluid quickly. I was only adding fluid since I have a slow leak in the transfer case and I just keep topping it off.

For the rear differential all I needed to do was cut the tip off the bottle some and I just squished the bottle and forced the fluid out and into the fill hole. That method only let me empty half the bottle so I did the same thing to my extra. Filled up nice all the way until it started dripping out the of the fill hole.

The 15 year old/ 91k mile fluid came out looking very , very light brown. The new Mobil1 came out of the bottle almost clear. So the lifetime fluid looked like it was needing to be changed. The front was done when I had to replace the front differential last summer.