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      12-30-2012, 05:40 PM   #23
vachss
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Quote:
Originally Posted by vachss View Post
E90 folks seem to use oil extractors for this and do everything through the filler hole. http://www.e90post.com/forums/showthread.php?t=385975
Edit: which is exactly the way I had to do mine today. Wish I could be sure I'd gotten all the old oil out, but it ended up taking about 1.2 qt like others have reported. Old oil looked a clear orange/amber color after 100K miles.
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      04-20-2014, 02:22 PM   #24
rsutoratosu
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Did my diff today

Lost my 14mm hex so I googled and found this

http://www.bokchoys.com/differential/14mm_bolt.htm - went to home depot and pick up a bolt and 3 nuts like that. 59 cent for bolt and each nut was 12 cent

I had switch to a magnetic plug last year and here it is after 1 year.. Using redline 70w90. I drove about 6000 miles from last spring.


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      05-06-2014, 01:45 PM   #25
rocky79
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There wasn't a drain plug for the 07 3.0si coupe.
Do folks still change the diff oil eventough it says lifetime oil?
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      05-06-2014, 03:49 PM   #26
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I've done it a couple times on mine. Had to purchase a suction extractor to get the fluid out though-- it hooks to my air compressor.

Have to fish around a bit with it to get as much out as possible, but I figure it's better than no change at all.
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      05-06-2014, 11:59 PM   #27
rocky79
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I see, how many miles do you have on your SI?
I just bought it a month or so. it had 122K miles on it. maintenance record didn't show that the dealer has done any diff fluid change. I am still debating if it's needed.
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