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Old 06-01-2009, 04:22 PM   #1
jl_9k
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Member#: 59795
Join Date: Apr 2004
Location: Vancouver, BC
Default 2005 STi Transmission Fluid Change

I'm going to be doing a tranny oil change for my friend's 05 STi, and am wondering what type of drain plug it has. Does it need the T70 bit like the 5MT? The DIY threads in the FAQ for 6-speed all apply to the 5-speeds only. Also, is a flexible funnel required or will I be okay with a long plastic funnel? Will 4L of MTF be enough for the change? I'm going to assume the diff takes less than 1L.

Thanks in advance.
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Last edited by jl_9k; 06-01-2009 at 04:31 PM.
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Old 06-02-2009, 02:08 AM   #2
lDeez lNutz
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Member#: 94339
Join Date: Aug 2005
Chapter/Region: SCIC
Location: socal
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2005 STi

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recently did mine on my 05 sti, found that the T70 tool i bought was useless because the drain bolt used a regular hex nut, forgot what size, i want to say 14mm...

flexible funnel will be easier.

i used motul gear 300 and initially did not notice a difference, but after a few weeks i've noticed slightly better shifts.

ps - only use 6 point sockets as i nearly stripped my drain bolt with those multi point sockets.
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Old 06-02-2009, 07:24 PM   #3
CygnusPerformance
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Subaru used a regular drain plug on the STIs until 07 when they switched the front plug to the T70 style plug. The rear plug on all models is a normal hex style plug.
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