Can Synthetic ATF be a substitute for GM Automatic Transfer Case Fluid?

[TurboDiverArt]

Just curious here. I need some and I’m not 100% sure I can get to a local Chevy/GMC dealer tomorrow to get some. In looking at the Royal Purple site, their Synchromax can be used as a substitute for GM 12378396 (Automatic Transfer Case Fluid). Synchromax is also used as a substitute for Dextron and Type F automatic transmission fluid.

Wondering if I can’t get to a GM dealer tomorrow, can I use synthetic automatic transmission fluid?

In checking the Internet, seems a number of places say you can also use regular Dextron III ATF. I’d probably put in Synthetic Dextron III replacement oil vs. regular ATF as GM says the correct fluid has extra anti-friction properties, which I would assume synthetic would be better for.

Thanks,
Art.