Having spoken with 3 different Lippert leveling system support techs they all say..
Yes.. their documents state ATF but the various factory builders tend to use AW32 fluid instead... because they buy in bulk... either is fine according to Lippert..
AW32 is slightly higher in viscosity and ATF has a bit more detergent in its mix and is a bit lower in viscosity...
I don’t run stiction fluid in my 7 year old hydraulic six point leveling system.. it pops every now and then with temp changes and that is the “nature” of the beast...
I wouldn’t worry about removing the “mix” of fluid. I’m just an old fashioned mechanic and I personally don’t mix different lubes with oring seals
YMMV
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