legacyduane Posted August 29, 2010 Share Posted August 29, 2010 What's the best diff fluid to use? And I have a automatic 4 speed what the best tranny fluid for that? Link to comment Share on other sites More sharing options...
indytruckboy Posted August 30, 2010 Share Posted August 30, 2010 Subaru ATF-HP Link to comment Share on other sites More sharing options...
laz Posted August 30, 2010 Share Posted August 30, 2010 That is what I read in the manual, plus a couple of alternatives that are impossible to find in local auto parts stores. X --- Link to comment Share on other sites More sharing options...
indytruckboy Posted August 31, 2010 Share Posted August 31, 2010 no alternatives if you want your trans to be happy Link to comment Share on other sites More sharing options...
ShrinerMonkey Posted August 31, 2010 Share Posted August 31, 2010 I went with BG universal synthetic ATF using my local Subaru dealers BG flush service machine. Here is a link to my thread: http://legacygt.com/forums/showthread.php/bg-transmission-flush-my-4eat-144687.html Link to comment Share on other sites More sharing options...
ShrinerMonkey Posted August 31, 2010 Share Posted August 31, 2010 no alternatives if you want your trans to be happy Not true. Plenty of people have used other fluids without any problems. Subaru can't require their fluid unless they provide it for free, that is the law. My transmission is shifting better than it ever has on BG fluid, so I guess you could say it is happy. Link to comment Share on other sites More sharing options...
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