DIY: Transmission Oil Change

kenchan · 09-21-2010, 05:13 PM

^^ thanks, spearfish!

im definitely getting that instead. i have motive brake bleeders/replenish bottles and was looking for their pump but couldn't find it. now i know.

spearfish25 · 09-22-2010, 10:01 AM

Sure thing. Looking at the motive pump again, I'm tempted to just make my own adapter and use my brake bleeder Motive pump to do the diff oil. Since it already includes a fitting to change the different caps you use, it should be easy to make a tube that screws on and has a 90deg hollow metal end to go in the diff.

ChrisSlicks · 09-22-2010, 11:01 AM

I installed straight MT-90 in the transmission but can't say I would recommend that overall. The transmission felt great on the track but is notchy on the street especially when cold, the oil is too viscous when below 200F. The new MT-85 looks to be a better recipe for our transmission.

Nitex · 09-22-2010, 11:13 AM

I am currently shipping back the 90 to Z1, and in a few weeks when it arrives

they will ship out the 85.

spearfish25 · 09-22-2010, 11:25 AM

Quote:

Originally Posted by Nitex

I am currently shipping back the 90 to Z1, and in a few weeks when it arrives

they will ship out the 85.

If you don't mind the wait, that's fine. If you want it done sooner, just mix them. Very simple to do.

Mandingo · 03-21-2011, 10:10 PM

Just changed my oil to MT-85 at ~3k miles. Glitter came out

:

Tell me this is ok lol

ChrisSlicks · 03-22-2011, 07:58 AM

Quote:

Originally Posted by Mandingo

Just changed my oil to MT-85 at ~3k miles. Glitter came out

:

Tell me this is ok lol

It's not gold, it's brass, I'm guessing from the syncro's. A small amount during break in is ok but if it continues you have a problem. How many miles?

spearfish25 · 03-22-2011, 08:16 AM

Ruh roh. Just drive until there is a problem shifting. The dealer won't do anything about tiny shavings in your fluid. You have a 5 year powertrain warranty. Just don't install a short shifter, aftermarket clutch or flywheel.

Mandingo · 03-22-2011, 07:33 PM

Yea, I wont be doing any mods that could void the powertrain warranty now which is a pity. I was thinking about clutch and flywheel options until I saw this mess in the oil.

@ChrisSlicks
it has 3000 miles

More on topic--I'm glad I changed to redline but shifts feel exactly the same as before. I'm sure when it gets cold again there will be some difference

ChrisSlicks · 03-22-2011, 08:20 PM

Hopefully just some normal break-in wear, the first 1000 miles or so on the transmission will create some. Do another change in 6-months and see what you get. Most important just bring it to the dealer if you detect anything out of the ordinary.

dkmura · 03-23-2011, 10:14 AM

Quote:

Originally Posted by Mandingo

Just changed my oil to MT-85 at ~3k miles. Glitter came out

:

Tell me this is ok lol

Not to worry- that's not too much glitter. The other thing to watch for is any large chunks of brass or steel in the shavings. It's normal for there to be some syncro wear, but anything that looks like a small mass should be examined more closely. Whenever I change the tranny oil in my road race T2 Z, I look very carefully at the "glitter" to make sure no major damage is showing up.

stunner253 · 04-02-2011, 07:41 PM

Thanks for the DIY spearfish! my transmission oil change went smoothly

fjpthree · 06-16-2011, 07:47 PM

At what mileage did you complete this change?

spearfish25 · 09-01-2011, 05:05 PM

I did it at 5k and every spring thereafter. Manual recommends doing at 30k intervals, but the oil looks so crappy I do it more often.

TongMan · 09-01-2011, 06:37 PM

OP please update first post with pics for easier viewing.

09-22-2010, 10:01 AM	#47 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Sure thing. Looking at the motive pump again, I'm tempted to just make my own adapter and use my brake bleeder Motive pump to do the diff oil. Since it already includes a fitting to change the different caps you use, it should be easy to make a tube that screws on and has a 90deg hollow metal end to go in the diff. __________________ 2013 Cadillac V-Wagon, RIP Z

09-22-2010, 11:01 AM	#48 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	I installed straight MT-90 in the transmission but can't say I would recommend that overall. The transmission felt great on the track but is notchy on the street especially when cold, the oil is too viscous when below 200F. The new MT-85 looks to be a better recipe for our transmission. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

09-22-2010, 11:13 AM	#49 (permalink)
Nitex Track Member Join Date: Jan 2010 Location: Seattle Posts: 848 Drives: '13 GTI Stage 2 UNI Rep Power: 16	I am currently shipping back the 90 to Z1, and in a few weeks when it arrives they will ship out the 85. __________________ 2013 Drivers ED GTI \| Stage 2 Unitronic

03-21-2011, 10:10 PM	#51 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	Just changed my oil to MT-85 at ~3k miles. Glitter came out : Tell me this is ok lol Last edited by Mandingo; 03-21-2011 at 10:34 PM.

03-22-2011, 08:16 AM	#53 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Ruh roh. Just drive until there is a problem shifting. The dealer won't do anything about tiny shavings in your fluid. You have a 5 year powertrain warranty. Just don't install a short shifter, aftermarket clutch or flywheel. __________________ 2013 Cadillac V-Wagon, RIP Z

09-21-2010, 05:13 PM	#46 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	^^ thanks, spearfish! im definitely getting that instead. i have motive brake bleeders/replenish bottles and was looking for their pump but couldn't find it. now i know.

03-22-2011, 07:33 PM	#54 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	Yea, I wont be doing any mods that could void the powertrain warranty now which is a pity. I was thinking about clutch and flywheel options until I saw this mess in the oil. @ChrisSlicks it has 3000 miles More on topic--I'm glad I changed to redline but shifts feel exactly the same as before. I'm sure when it gets cold again there will be some difference

03-22-2011, 08:20 PM	#55 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	Hopefully just some normal break-in wear, the first 1000 miles or so on the transmission will create some. Do another change in 6-months and see what you get. Most important just bring it to the dealer if you detect anything out of the ordinary. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

04-02-2011, 07:41 PM	#57 (permalink)
stunner253 Base Member Join Date: Feb 2010 Location: Seattle Wa. Posts: 235 Drives: Nismo red Rep Power: 15	Thanks for the DIY spearfish! my transmission oil change went smoothly

06-16-2011, 07:47 PM	#58 (permalink)
fjpthree Base Member Join Date: May 2011 Location: Maryland Posts: 67 Drives: 09 Touring/Sport/Nav Rep Power: 14	At what mileage did you complete this change?

09-01-2011, 05:05 PM	#59 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	I did it at 5k and every spring thereafter. Manual recommends doing at 30k intervals, but the oil looks so crappy I do it more often. __________________ 2013 Cadillac V-Wagon, RIP Z

09-01-2011, 06:37 PM	#60 (permalink)
TongMan A True Z Fanatic Join Date: Feb 2010 Location: NorCal Posts: 1,297 Drives: 2013 Nissan GTR Rep Power: 715	OP please update first post with pics for easier viewing.

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