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07-15-2013, 01:31 PM | #1 |
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2012 Impreza differential fluid change?
Just wanted to make sure that the maintenance schedule for changing front and rear differential fluid was at 30,000 miles for severe driving? This is according to the Subaru maintenance schedule on cars101. So what happens if you don't do severe driving? Is it further out than that?
http://www.cars101.com/subaru/maintenance-2013.html
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07-15-2013, 02:43 PM | #2 | |
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If you want to change it yourself, and you have a 5 speed, it is easily done for under $100 -- I switched to Amsoil Severe Gear and it is rated for 100,000 miles (fully synthetic, search the forums for info). If you have a CVT, you probably cannot do the front differential yourself, unless it is separate from the trans fluid. A CVT owner can let you know that. |
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07-15-2013, 04:33 PM | #3 |
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Had the differential fluids changed at about 3,000 miles by the dealer (cost about $200, including the AmsOil, if my memory is correct). I also used the AmsOil Severe Gear. Tech stated that he had a heck of a time breaking the seals on the drain/fill up plugs - first one that they ever did. For the CVT, the differentials and the CVT "fluids" are separate, while for a manual transmission they are the same. I plan to change them again at about 60,000 miles, and not before, as suggested by the Service Manager (he used to be an AmsOil representative).
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07-15-2013, 04:56 PM | #4 | |
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Anywhere that has pavement, dirt, air, rain, or atmosphere is SEVERE. |
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07-15-2013, 10:06 PM | #5 |
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$200 is an absolute rip off for trans/differential change on a manual trans. Drain and fill plug and no filter, more simple than an oil change.
Shouldn't be more than $20 per diff/trans. |
07-16-2013, 08:44 AM | #6 | |
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07-16-2013, 09:37 AM | #7 |
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does cvt fluid need to be changed? I don't remember ever seeing it in the maintenance booklet.
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07-16-2013, 09:38 AM | #8 |
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I believe its under "Inspect" at 30k, 60k, 90k, 120k for the CVT fluid. So basically every 30k miles
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07-16-2013, 09:48 AM | #9 |
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So Im guessing the only way to inspect cvt fluid is to bring it to dealer?
Can I change front and rear diff fluid without touching cvt fluid? |
07-16-2013, 10:25 AM | #10 |
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Not sure about inspecting the CVT fluid, but looking at the service manual, the front and rear diffs are separate from the CVT fluid on the CVTs models.
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07-16-2013, 11:26 AM | #11 | |
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The manual warns that if you fill the CVTF to the bottom of the filler hole when the CVTF is not up to temperature, the fluid will later expand when warm and will overflow. If you're comfortable with that process, then the CVTF replacement procedure (see page CVT-38) is similar. Basically, you drain the old CVTF, install the drain plug using a new gasket (torque spec 22.9 ft-lb), remove the filler plug, add new CVTF, temporarily install the filler plug, bring the CVTF up to temperature as described above by moving the gear lever through the different positions, and then top off the CVTF fluid as described above (with the engine idling). When draining the old fluid, the manual suggests checking the condition of the old fluid, looking for metal particles (which indicates excessive wear), "thick and varnish-form fluid" (whatever that means; indicates burnt clutches), or clouded CVTF with bubbles (indicates water getting into the CVTF). Hope this helps. |
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07-16-2013, 12:15 PM | #12 | |
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07-16-2013, 12:19 PM | #13 |
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^ same with the rear diff.
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12-30-2013, 01:19 PM | #14 |
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Having just changed the front and rear diff fluid on my 2012 sport limited with cvt, I must say two things.
1. The rear diff fluid was filthy. I mean really filthy. If you wanna keep this beast 100,000 or more, strongly suggest getting the wear in debris out early. 2. There are things on the front drivetrain that could EASILY be mistakes for the front diff fill port. The correct one is on the passenger side above the right inner cv joint, and comes loose with an 8mm hex. On the drivers side, there is a plug with a 10 mm hex that looks like it's part of the diff. If you remove this plug, green cvt fluid comes out. For an inexperienced mechanic this could be a disaster. Get the shop manual or make sure you smell plugs and fluids Shawn |
12-30-2013, 02:45 PM | #15 |
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Anybody doing more than an oil change should get a shop manual. Given there are already at least two CVT owners who drained the CVT fluid when they were not meaning to drain the CVT fluid, potential mechanics who are not sure should double check the location of that drain valve, and avoid it.
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12-30-2013, 04:28 PM | #16 | |
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But, that driver's side plug - waaaaay up, and Lord help me, it IS on the differential side of the gasket between the transmission and differential (I'm still working that out in my head how fluid from the transmission gets to that plug - guess I need to check my own shop manual more thoroughly) could easily fool someone who didn't have the manual memorized. But, definitely agree. My first purchase for the car was the shop manual. First time I've REALLLY had to use it. Shawn |
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12-30-2013, 04:40 PM | #17 | |
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12-30-2013, 05:08 PM | #18 | |
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I like totally idiot proof stuff, myself. Shawn |
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01-05-2014, 06:53 PM | #19 | |
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01-05-2014, 06:55 PM | #20 | |
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01-05-2014, 07:25 PM | #21 | |
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01-05-2014, 07:38 PM | #22 |
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The front differential in the 5 speed impreza has a dipstick, mainly because the front differential is also the manual gearbox.
The rear diff is the same as the CVT, two plugs, no dipstick. |
01-05-2014, 07:56 PM | #23 |
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Correct, but the 5 speed it not the only one with a dipstick, the one for my car is aluminum and is hard to tell if you are not looking very well. there are plenty of Subaru's that have a yellow topped dipstick located on the pass side to check front diff fluid. I might just be thinking about outbacks and foresters and 2.0i imprezas, and crosstrecks, and tribecas all have one.
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01-12-2014, 05:57 PM | #24 |
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Just went to do a transmission fluid change on my 2013 impreza manual and I cannot find the dipstick tube. I figured it would be similar to my 2004 wrx, simply drain and fill from the tube... Maybe I am blind...
Kevin |
01-12-2014, 05:59 PM | #25 |
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Oh geeze... just found it... Tucked right behind the block.
Kevin |
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