transfer case fluid

[TheAutumnWind]

I'm sure that this has been beaten to death.

I am finding some conflicting information on tcase fluid changes. I have the full time AWD Denali, and it appears to be different for different tcases available. Looks like some use dex3 (now called manual transmission fluid?), some will say dex4, some suggest auto-trak 2, but if it had red fluid in it previously to flush after a week of driving and refill.

 

[mizzouguy]

Auto-trak 2 is blue, used in the push button 2/auto/4hi/4lo t-cases. Your owners manual should spec a certain fluid for your application. I believe the full time awd t-case specs something else.

 

[TheAutumnWind]

Auto-trak 2 is blue, used in the push button 2/auto/4hi/4lo t-cases. Your owners manual should spec a certain fluid for your application. I believe the full time awd t-case specs something else.

Alright thanks.

Yeah, from what I can tell, it should be the old dex3, but dealer fill is now autotrak2? And that should be ok?

 

[mizzouguy]

From what I've been reading on other forums, that appears to be the case. If it was me, and my owners manual says to use dex-III, I would use dex-III. Maybe someone else will chime in who has the nvg-149 like you.

 

[01ssreda4]

Use dex/merc from the auto parts store.