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DIY: Transmission and Differential fluid replacement

Old Jun 25, 2010 | 12:22 PM
  #326  
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Just reuse the one that comes off if you have one on there in the first place, some don't. I think some people look into it too much. I've never replaced a drain nut/washer ever in my vehicles, not a single issue.
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Old Jun 26, 2010 | 07:14 AM
  #327  
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Originally Posted by Racingjunkie
im about to do my trans/diff fluid change in a few days just waiting for my amsoil to come in. just wondering how crucial it is to buy new drain/fill plug washers. the only place i can find them is the mazda dealer but they charge like 5 buck each. thats 20 bucks worth of washers... seems insane. does anyone have a better source for these? ive tried looking around online but no one has'em. any help?
http://www.finishlineperformance.com...me.php?cat=273
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Old Jun 28, 2010 | 10:51 AM
  #328  
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Good DIY. Thanks. I reused the washers. They looked good. The pump worked well, but I dripped some. That stuff tastes funny. Everything's harder if you don't have much clearance. :/
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Old Jun 28, 2010 | 12:19 PM
  #329  
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^ I reused my washers at ~20k miles as well, even tho' I had spares. They looked fine and I was too lazy to get up from my nice nap under the vehicle.

The 1 qt hand pump does take awhile but not too bad. Four leveled outboard jackstands provide enough clearance even when using a breaker bar on the nuts. I didn't bother to taste the Redline, so will take your word for it.
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Old Jun 28, 2010 | 05:07 PM
  #330  
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/\ lol...
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Old Jul 12, 2010 | 01:51 PM
  #331  
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Gonna try this diy on next paycheck. car almost at 60k mi and have no clue when the last of the maintence has been done.
Maybe this will fix my 3rd to second down shift and make it easier to shift.
at least this shoudl be an easy change for me as i work security for a dealership so all i have to do is get one of the janitors to let me in to use a lift


oil change and spark plugs done

spark plug wires, ignition coils

trans and diff fluids

coolant replacement.

damn u 60k mark

Last edited by marcx987; Jul 12, 2010 at 02:24 PM.
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Old Jul 13, 2010 | 12:03 PM
  #332  
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Anyone have any experience with Castrol SYNTEC Full Synthetic Gear Oil, API GL-5 and MT-1, SAE 75W-90 formula ? I wanna change out the fluid of the tranny and dunno if this will do since I got like 5 bottles as a gift.
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Old Sep 7, 2010 | 04:53 PM
  #333  
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I did this change today, and while I can notice the difference between the old and new (I don't think the old had ever been changed after 71k miles), there's a new error in that the electrical in my car won't shut off, even if I take the key out of the ignition. I wonder if this has something to do with the new oil, since this happened immediately after I changed it. I didn't fill it up to the point of overflowing since I filled it through the shifter hole, so maybe it's related to that. Anyone ever had this problem?
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Old Sep 22, 2010 | 12:34 AM
  #334  
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Unless you tried to fill your transmission through your ignition switch, this is not a related issue. I would start my diagnosis at the ignition switch.
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Old Oct 18, 2010 | 10:57 AM
  #335  
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From: Between Cones
Originally Posted by Calmstorm
Unless you tried to fill your transmission through your ignition switch, this is not a related issue. I would start my diagnosis at the ignition switch.
This made me laugh
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Old Oct 18, 2010 | 12:28 PM
  #336  
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Me too..lol
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Old Oct 18, 2010 | 12:43 PM
  #337  
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Ash, i posted in the other thread about transmission fluids, but do you know if you can fill the tranny on the S2 via the shifter hole like you could with the S1? If not, mind telling me why just so I have some knowledge for the future.
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Old Oct 18, 2010 | 01:19 PM
  #338  
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I can't be sure, I can't see 'why not', but I am not a fan at all of filling tranny oil through shifter.

I do not like bringing/pouring ANY oils inside my cabin, let alone removing boots , etc, etc.

Unnecessary hassle to me,

I hoist my car up on 4 Jack stands, so it is about 8 inches off the concrete level floor, and drain fluids (when hot) and fill though the "filler plug" until it starts to drip out...small hand pump.

This IS the correct procedure.
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Old Oct 18, 2010 | 01:27 PM
  #339  
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Yea i know, i only have 2 stands so i didn't want to deal with the hassle of up down up down up down to level and drain. Maybe i can just use the scissor jack to lift up the driver side a bit and get a good reach. I guess we will find out.

Btw, how are you with jack standing up the front of the car? I am always nervous because the hats of the jack stands put a little pressure on the plastic around the lift frame. I have some rubber pads to pad between the hat and the frame but maybe i need to pad it a bit more

I have these exact ones

http://www.harborfreight.com/2-piece...rce=googlebase
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Old Oct 18, 2010 | 01:51 PM
  #340  
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Meh, filling through the shifter is far less hassle, less mess, etc.

Last edited by 9krpmrx8; Oct 18, 2010 at 01:57 PM.
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Old Oct 18, 2010 | 01:53 PM
  #341  
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I use 4 "pole" stands with my made to order high strength steel tube I had made and welded to the 4 stand tops, so I use them where the factory scissor jack goes, my stands have the same top on them like the OEM scissor jack...works well...only cost $30 to have 4 made and welded on.

Car must be level when filling...
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Old Oct 18, 2010 | 01:56 PM
  #342  
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Originally Posted by 9krpmrx8
Meh, filling through the shifter is far less hassle, less mess, etc.
This.

So much easier and less hassle than doing it by a pump unless you have spazzy, Parkinson diseased hands and worry about pouring oil all over the place; tip, use a funnel. Plus first time you ever do it, just remove the top plug to verify that it's full if oil comes out using the proper amount and you're fine. For the average car, you don't need more than 2 quarts.
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Old Oct 18, 2010 | 01:58 PM
  #343  
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OH, I do Diff and Trans at same time, engine oil if I want to also, all Tyres OFF if I want to (rotate), great for me, ...so no mess and NO smelly Tranny Oil inside car..YUK!..no chance of inside spill.

No Hassle to me and just as quick.
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Old Oct 18, 2010 | 02:03 PM
  #344  
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So how do you do your Diff, Remove your GAS TANK...lol

Until I came here, I never heard of doing Tranny this way, my techs heard about it, but advised against it and naturally they don't do it because they have proper car hoists.

Each to their own..
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Old Oct 18, 2010 | 02:04 PM
  #345  
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We're talking about replacing the tran fluid, not the diff fluid.

Obviously doing it the gas tank way is far superior, obviously.


































































































































If you took that last line seriously you're beyond hope and sarcasm eludes you significantly.
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Old Oct 18, 2010 | 02:04 PM
  #346  
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Yeah if you are doing all that at the same time you might as well do the tranny from underneath.
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Old Oct 18, 2010 | 02:07 PM
  #347  
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****

So after doing all that you then Remover the Filler Plug to check that the level is OK??..

Who is the Spazzy?!!

Last edited by ASH8; Oct 18, 2010 at 02:09 PM.
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Old Oct 18, 2010 | 06:45 PM
  #348  
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Originally Posted by ASH8
****

So after doing all that you then Remover the Filler Plug to check that the level is OK??..

Who is the Spazzy?!!
*sigh*

I see you take things personally easily not to mention have reading issues

Originally Posted by Vlaze
This.

So much easier and less hassle than doing it by a pump unless you have spazzy, Parkinson diseased hands and worry about pouring oil all over the place; tip, use a funnel. Plus first time you ever do it, just remove the top plug to verify that it's full if oil comes out using the proper amount and you're fine. For the average car, you don't need more than 2 quarts.
As I already stated, I suggested this only when doing so the first time to make sure the amount you put in is sufficient. After the first time knowing how much oil to place in, obviously you don't need to check it and just pour it in through the shifter opening and reinstall everything from that time on.

Originally Posted by ASH8
So how do you do your Diff, Remove your GAS TANK...lol

Until I came here, I never heard of doing Tranny this way, my techs heard about it, but advised against it and naturally they don't do it because they have proper car hoists.

Each to their own..
Because we all know how good and smart techs are with particularly our 8's

Originally Posted by ASH8
OH, I do Diff and Trans at same time, engine oil if I want to also, all Tyres OFF if I want to (rotate), great for me, ...so no mess and NO smelly Tranny Oil inside car..YUK!..no chance of inside spill.

No Hassle to me and just as quick.
There is no oil smell left that I've ever noticed changing my tranny oil thrice doing it this way. Whatever floats your boat.

Last edited by Vlaze; Oct 18, 2010 at 06:49 PM.
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Old Oct 19, 2010 | 04:31 AM
  #349  
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ill try dumping it in thought the shifter next time i change damn smell in the cabin got me for a couple weeks and still on the shirt i changed the oil in(no matter how many times i washed it)
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Old Oct 23, 2010 | 08:37 PM
  #350  
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I chimed in on the other thread but also wanted to make it clear in this one. You cannot pour fluid into the hole on the S2. Tried today, ended up using the fill hole per standard instructions. Not sure the mechanical and architectural differences between the S1 and S2 trannys but if you try to pour the fluid through the shift hole it will not drain into the transmission.
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