@Barkydog - you have to click on the flag symbol then roll down and you can see what it is. Now I have to find a way to flag myself and save someone time.
I can flag you if you wish! Though we are close on a 10 to 1 likes and agrees vs abuse troll and off topic. welcome @glasspilot, I am sure you have a lot to add to this board.
Congradulations on getting a Roadmaster. Please enjoy it and have fun driving it. As far as fluids go, if you not sure, I feel like it is safer to change the filter and oil in the transmission. It might be a good idea to do the radiator flush. I think you could have a mechanic check the cooling system and radiator to make sure everything is in good shape. The other thing, I would consider is to replace all the hoses just to be on safe side.