hi everyone ,just topping up the two reservois on my mercury 4.3 v6 on my 220 thundercraft , the one says to use auto trans fluid , the other one says to use sae j1171 , anybody know what fluid that is ? thanks ...
What reservoirs are you talking about? If you don't know what they are called, post a picture. Over the years, there have been many different reservoirs, styles, and fluids in them.
Basically, Mercruiser doesn't recommend ATF in anything, so pictures are recommended.