A lot of used car dealers will change fluids prior to selling a vehicle, because people like you and me will pull the dipstick. It's hard to tell if the fluid was the wrong color because the dealership replaced the fluid with the wrong fluid thinking the vehicle had a CVT, or it could have been the previous owner who thought an oil salesman knew more than the engineers who designed the transmission and used some clear hydraulic oil instead of transmission fluid. Regardless of the reason, I'd steer clear (no pun intended.)
Yes this sounds the most likely. Used car hunting is driving me crazy!! Looked at a 2002
Ford Escape at a Ford dealer yesterday. I happened to get a look at the vehicle before they serviced it and pulled the oil dipstick and it was dry! I had them take it in the garage and
see how much oil it would take to get it full. It was 3 quarts down! No thank you ......