I have an 05 H2 SUT and am approaching 50K miles. I am wanting to change the transmission fluid and filter. I don't have anywhere to do it myself and need to have someone do it for me. The dealership wants $200 to change it. I can get the Dexron III and filter at AutoZone for around $50. I am thinking about just buying the fluid/filter myself and taking it to Superlube and just paying a small amount of labor to have them do it.

I just have a couple of questions:

1. Is it synthetic fluid in it or regular? I bought it used at 42K miles and doubt it has already been changed.

2. Do I need to change the fluid in the transfer case as well or can I wait til 100K miles?

3. Is there really that much difference between synthetic and regular ATF? I change my fluid and filter every 50K and I don't really tow anything.

4. If I do go synthetic should I also go synthetic in the transfer case?

Any comments or suggestions are greatly appreciated.

 

trans fluid and filter should be changed every 30K miles as well as transfercase oil. You dont need synthetic use Dex 3 and you well be fine. If you are in california maybe I can help