Hi this might be a weird question but can you use automatic transmission fluid as hydraulic fluid for a trim tilt system. I recently replaced my 1975 evinrude 85hp trim tilt motor with a second hand mercury 115hp trim tilt, filled with transmission fluid now i see leaks and the thing wont trim up very fast. I was going to try to repair the leak but wondering whether to keep using transmission fluid as i read somewhere it will do the job. Is quite expensive here in New Zealand for parts so we have to mix and match.