After a long 4 years I have finally picked up another 94 SC with a 5spd. I am so happy to be back. Now for the question, I have done some extensive research on her for the best trans fluid to use. Right now my trans is not grinding, but it is very notchy in between gears so I feel it is time to change the fluid since has never been changed with 175k miles on it. I have seen that Redline, Pensoil Synchromesh, and Royal Purple Synchromax are among the best, of course with Ford's Friction Modifier. Now I am partial to Royal purple becuase it has always done me good, so I am trying to get some feedback to if this is advisable and good solution for a fluid change. Thank you in advance for your help. Take care.