Rocketdog Posted July 27, 2016 Share Posted July 27, 2016 How can I tell when I should change my transmission fluid? I have a fwd manual 87 3door. Quote Link to comment Share on other sites More sharing options...
Sapper 157 Posted July 27, 2016 Share Posted July 27, 2016 (edited) <p>Is it not quite full or is it discolored/dirty? Has it never changed? If the answer to any of those questions is yes... its time for a change.</p> Edited July 27, 2016 by Sapper 157 Quote Link to comment Share on other sites More sharing options...
silverhelme Posted July 27, 2016 Share Posted July 27, 2016 (edited) The service manual says to inspect every 30k but gives a footnote that under heavy service to replace every 30k. I tend to err on the side of caution and change at 30k and my #AT's seem to last longer than most peoples. You don't need to replace the filter unless you suspect contamination as it is only a screen anyway, just drain and replace the fluid. Edited July 27, 2016 by silverhelme Quote Link to comment Share on other sites More sharing options...
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