I'm just finishing up all the fluid changes on my 73 dart. It's a 225 slant with a 904.
Question one: the service manual says dexron 1 which . . . you know. . . doesn't exist anymore. I did a little research that said dex/merc is okay to use. Is this right???
Question two: I'm doing a change not a flush. I know this only replaces about half the fluid, and I have no idea what's in there now. Will it cause a problem if I mix two types of fluid??
Thanks as always.