i heard of a guy running straight tranny fluid for four years straight before he sold the thing. i wouldnt do it that long but you can use tranny fluid untill you change your oil again. Tranny fluid is a very good cleaner but i would run it for about 1000 km max just so the ATF doesnt build up a residue. If u want to test how good your tranny fluid will clean your hands, then get them real dirty, and then clean em with tranny fluid ( i havent bothered to try this but people say it works u just have to wash off the tranny fluid with soap and water afterward)


got my 78 merc with a 250 I6 and i love it.