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03-16-2010, 09:34 PM
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#1 |
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Member
Join Date: Nov 2004 Location: Fairfax Station, VA
Posts: 918
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Trans & Diff fluid
How often does everyone replace their cars' transmission and differential fluid? I looked through the Subaru owner's manual but couldn't find anything to indicate how often this should be done.
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03-17-2010, 04:55 PM
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#2 |
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Administrator
Join Date: Jan 2004 Location: Falls Church, VA
Posts: 9,092
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i try to do it every 40K-50K. i would say if you're unsure just go ahead and do it. i don't know how many miles you have but make sure when you change it to open the fill hole first before the drain just in case the bolt has seized. it would suck to drain your fluids and not be able to refill.
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 "Bitch who told you to sit down? You better wait for my request!!" |
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03-17-2010, 05:38 PM
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#3 |
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Administrator
Join Date: Feb 2005 Location: South Riding, VA
Posts: 2,663
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The Evo's manual calls for trans/diff fluid every 30k, I'm sure the STI is something similar
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 2006 Evo IX -- 327 hp // 320 ft-lbs 2006 CBR 600RR 2000 LHS |
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03-17-2010, 05:52 PM
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#4 |
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Join Date: Aug 2008
Posts: 334
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30,000 miles.
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03-17-2010, 06:08 PM
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#5 |
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Join Date: Apr 2005 Location: Sterling, VA
Posts: 4,829
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I do it every 10k-15k miles, not because of fluid life but due to metal particles in the fluid. It's completely overkill but cheaper than an oil change.
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 '08 Speed3 | '06 ZX-10R |
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03-17-2010, 07:49 PM
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#6 |
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Member
Join Date: Nov 2004 Location: Fairfax Station, VA
Posts: 918
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Ah very good. Thanks everyone. I'm nearing the 30k mark since last changing the fluid, so I think I'll get one of the Subaru fluid change kits at MachV. Good call on opening the fill hole first, then the drain hole - that would be a real downer should the empty differential not be re-fillable.
Secondly, I know Zero Sports makes a magnetic oil drain plug that's supposed to help catch metal particles. Perhaps they make one for the transmission as well... |
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03-18-2010, 01:38 PM
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#7 |
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Member
Join Date: Jan 2006 Location: Knoxville, TN
Posts: 1,468
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30k, spark plugs every 60k.
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03-18-2010, 02:32 PM
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#8 |
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Member
Join Date: Jun 2005 Location: Sterling
Posts: 3,561
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I hate the smell of gear oil.
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 Luke Shakes Fist: it works everytime i swear to god; all you have to do, find a chick, pick her up, take her to ecb, and the rest just falls into place |
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