since you probably did the change to mobil 1 early on in the life of the trans, it probably didn't mess with anything. BUT if you ask brendan (87montero) he will tell you, don't use anything other than Diamond ATF from mitsu. Mobil 1 in a used worn trans will eat seals, and cause problems... <img src="/forums/images/graemlins/scared.gif" alt="" />


Richard E
1989 Montero - Stock-ish
1989 V6 Auto Raider - 5.3 Vortech Swap.
1987 Mitsubishi Starion 2.6t, soon to be 3.5
1983 Honda XL600R