Subieaction Posted September 16, 2014 Share Posted September 16, 2014 Just bought a 90k maintenance package for my 2005 Legacy GT Manual, but I am getting mixed reviews on whether or not I should change my transmission fluid. From my understanding you can change it ever so often or do not do it all. Because once you do change it, the new fluid will start breaking away the parts in the transmission until you start having real problems. Is there any truth to this? http://blogs.cars.com/kickingtires/2013/07/do-you-really-need-to-change-the-transmission-fluid.html Thanks, Chris Link to comment Share on other sites More sharing options...
apexi Posted September 16, 2014 Share Posted September 16, 2014 Since you have a manual transmission, I would definitely change it. I'm pretty sure it what you've heard only applies to automatic transmissions. Link to comment Share on other sites More sharing options...
Subieaction Posted September 16, 2014 Author Share Posted September 16, 2014 Just from speaking to a few people on whether or not to do. Have you had any bad experience with doing so? Link to comment Share on other sites More sharing options...
Subieaction Posted September 16, 2014 Author Share Posted September 16, 2014 Going for my 120k mile service so thats why I asked Link to comment Share on other sites More sharing options...
Akasa Posted September 17, 2014 Share Posted September 17, 2014 You should absolutely change your M/T trans fluid at 90k miles, and while you're at it, change your rear diff fluid as well. In fact, this is part of Subaru's maintenance guide. In fact, you're probably going to notice slightly better shifting overall with a fluid change. Here's a link to the service schedule list: GT Maintenance Schedule Now... What you DON'T want to do is FLUSH your transmission fluid, that's where you can run into problems, and that's where most people run into problems. Link to comment Share on other sites More sharing options...
Subieaction Posted September 17, 2014 Author Share Posted September 17, 2014 I missed my 90k miles currently at 111k. That's why I was asking. I thought a chance is a flush. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 23, 2014 Share Posted September 23, 2014 That fluid needs to be changed every 30,000 miles. You should be using Subaru Extra-S. 3.8qts in the tranny and .8 qt in the rear diff. They have just released a new part number for it in qt bottles. There is a thread about it int he tranny forum. http://legacygt.com/forums/showthread.php/best-transmission-differential-oil-200762p4.html 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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