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DIY: Transmission Oil Change

Thanks for the write up. I did this at 13931 miles. Just a couple of note I want to add. #1 My transmission hadt always been notchy since it was

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Old 10-08-2011, 03:04 PM   #61 (permalink)
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Thanks for the write up. I did this at 13931 miles. Just a couple of note I want to add.

#1 My transmission hadt always been notchy since it was new, I was too cheap and lazy to do this job. When it was completed yesterday, the transmission felt so much smoother. I still get the occasional notch in second, but it was nowhere close to what it was. All the other gears felt smoother. If I were to do over, I would probably change it after a few months.

#2 My car has about 12 track days, 450 autox runs and some easy street miles, the fluid were completely black after 13931 miles.

#3 I used Amsoil 75W90 GL-4. Please make sure you use GL-4 as the brass in the transmission doesn't like GL-5 fluids. My car had 3 quart coming in, 3.5 went back in.

#4 I bought my fluid pump from Harbor Freight, it was like $6.99. The pump is excellent as it is fast and doesn't leak.

#5 The drainplug and fill plug are 9mm hex if i recall correctly, maybe 8mm, but i am pretty sure it is 9mm

Differential fluid tonight
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Old 10-08-2011, 04:23 PM   #62 (permalink)
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Quote:
Originally Posted by TongMan View Post
OP please update first post with pics for easier viewing.
LOL. I'll get right on that .
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Old 10-08-2011, 04:24 PM   #63 (permalink)
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Quote:
Originally Posted by cossie1600 View Post
Thanks for the write up. I did this at 13931 miles. Just a couple of note I want to add.

#1 My transmission hadt always been notchy since it was new, I was too cheap and lazy to do this job. When it was completed yesterday, the transmission felt so much smoother. I still get the occasional notch in second, but it was nowhere close to what it was. All the other gears felt smoother. If I were to do over, I would probably change it after a few months.

#2 My car has about 12 track days, 450 autox runs and some easy street miles, the fluid were completely black after 13931 miles.

#3 I used Amsoil 75W90 GL-4. Please make sure you use GL-4 as the brass in the transmission doesn't like GL-5 fluids. My car had 3 quart coming in, 3.5 went back in.

#4 I bought my fluid pump from Harbor Freight, it was like $6.99. The pump is excellent as it is fast and doesn't leak.

#5 The drainplug and fill plug are 9mm hex if i recall correctly, maybe 8mm, but i am pretty sure it is 9mm

Differential fluid tonight
Glad it worked out for you. If you think the tranny fluid looked bad, just wait til you see the diff fluid.
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Old 10-08-2011, 10:57 PM   #64 (permalink)
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about to go down and check it, need my wife to get into the garage and spot the car onto the ramps
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Old 10-08-2011, 11:55 PM   #65 (permalink)
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you are right, the diff is disgusting, I am uppering the change interval to every other oil change. It's actually quite a bit easier than the tranny
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Old 10-21-2011, 08:03 AM   #66 (permalink)
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Any picks of Tranny fill plug?
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Old 11-07-2011, 03:22 PM   #67 (permalink)
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Great write up. I definitely need to do this, my shifts into first and second are always rough compared to our 3000gt and camaro in the lower gears. +1 rep for OP
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Old 01-29-2012, 12:59 PM   #68 (permalink)
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Default transmission oil change 7AT

is it the same for the 7AT
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Old 01-30-2012, 10:38 AM   #69 (permalink)
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is it the same for the 7AT
No, the auto is completely different and requires different fluid and procedures.
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Old 02-17-2012, 10:38 PM   #70 (permalink)
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repped spearfish. thanks!
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Old 04-01-2012, 11:38 AM   #71 (permalink)
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Hello, stupid question I guess but here it is. I put 3 quarts in but it didn't overflow. Is that enough oil for the M/T?

I have been driving it, seems fine, but I have to ask.. Thanks..
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Old 04-01-2012, 02:21 PM   #72 (permalink)
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Basically, just keep pumping until it starts to overflow, then you're good.
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Old 04-02-2012, 09:25 AM   #73 (permalink)
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Quote:
Originally Posted by Eon777 View Post
Hello, stupid question I guess but here it is. I put 3 quarts in but it didn't overflow. Is that enough oil for the M/T?

I have been driving it, seems fine, but I have to ask.. Thanks..
Was your Z raised on a level surface when you were draining and filling the tranny? I've filled and drained several Z trannys and they never take more than three quarts.
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Old 04-02-2012, 11:03 AM   #74 (permalink)
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I was also wondering if it's worth buying the 4th quart just in case, or have people been fine with buying 3?
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Old 04-02-2012, 12:30 PM   #75 (permalink)
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I bought 4 just in case and ended up using only a little bit of the 4th.
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