DIY: Transmission Oil Change

TreeSemdyZee · 02-26-2017, 09:57 PM

Quote:

Originally Posted by SINISTER

I just did the exact changes myself today...super easy but a bit time consuming getting the car level etc. I found also that it took just a bit over 3 quarts before fluid started to spill out with the trans. but the service manual clearly shows 3 quarts. So it must have been perfect before I did a couple of extra pumps of fluid....

Same here on mine last week.

corrigat · 05-20-2017, 03:26 PM

Just did my first transmission and diff fluid changes thanks to your write-up. It was a little tricky getting the drain plug off the diff because the tools I had were bulky, but overall super easy and saved me a bunch of money. Used MT-85 up front and royal purple in the back. Drives like new!

ShockWave · 02-25-2018, 10:07 AM

any tips on jacking up the car?

JARblue · 02-25-2018, 01:04 PM

Stock height? I like to drive one wheel up onto a short piece of 2x12 laid flat. This gives my jack just enough clearance to reach the front garage jack point, which means I can lift the entire front end and place both jack stands on the pinch welds at the same time. For the rear, I use the underside of the differential immediately below the drain plug to lift and place my jack stands again on the pinch welds. In order to have enough clearance for my jack, I typically have to stair step the lift and do the front to an intermediate lift height first, then rear to full height, then front to full height. I always use a hockey puck on the jack stand pad - I cut a slit in one to use at the pinch welds.

On lowered cars, I usually lift each corner individually (front then rear typically). I use the subframe inside the pinch welds to place the jack stand while using the pinch weld to lift. Body kit or exhaust modifications may additionally alter the approach. For example, I have to stack two pucks on the jack stand pad to clear my Fast Intentions exhaust.

SG4247 · 04-23-2018, 11:19 AM

I just did my 7AT on 4/22/18.

Exactly 5 quarts drained out, looked like used motor oil.

It has been on the jack stands for two weeks without starting, so a lot of fluid drained out.

Car only has 33k miles.

Put back 5-1/4 quarts, once up to temp at 104F, about 1/4 of a quart came back out of the standoff pipe.

Not a hard DIY, plan to do this again in 10K miles.

theART · 10-12-2018, 02:31 AM

Changed oil in my manual tranny to RedLine MT85 few weeks ago at 42k miles. Old oil looked new, driving on MT85 noticed tranny shifts smoother with less notching throughout all gears.

Umarali · 12-15-2018, 10:42 AM

Just changed my 6MT using redline MT-85 bought from summit racing here in arlington,tx for about $17.85 a quart. DIY was great help.
Drained little less than 3 quarts, oil looked new. Has 70k miles, bought at 62k miles. Dont know if previous owner changed it before or not but difference in shifting is amazing.
Car was levelled by front on ramps and rear on jacks, filled all 3 quarts without overfill. Thought of putting the used oil to overfill but didnt wanna use old oil so left it at 3 quarts, i hope it has enough oil.

Jsolo · 12-15-2018, 04:02 PM

FSM says it's 2.83 liters (2.99 qts) so you should be fine. I buy 4 and fill it til it starts dripping out. I've used a little of the 4th bottle.

I'm not sure what the fsm had in mind with the finger in hole level test

. My pinky might fit in there, can't remember if the index fit or not. While you're under you might as well flush/bleed the clutch. It's an easy process. I do gravity feed for most of it. Finish off with a helper to refresh what's left in the small portion of the slave line that above method bypasses.

Umarali · 12-15-2018, 04:12 PM

Quote:

Originally Posted by Jsolo

FSM says it's 2.83 liters (2.99 qts) so you should be fine. I buy 4 and fill it til it starts dripping out. I've used a little of the 4th bottle.

I'm not sure what the fsm had in mind with the finger in hole level test

. My pinky might fit in there, can't remember if the index fit or not. While you're under you might as well flush/bleed the clutch. It's an easy process. I do gravity feed for most of it. Finish off with a helper to refresh what's left in the small portion of the slave line that above method bypasses.

Flush/bleed clutch? I have no idea how to do that, is there a diy on that here as well?

Sent from my iPhone using Tapatalk

Jsolo · 12-19-2018, 02:50 AM

Look in the dyi/tech section on here (or myg37.com). Techniques are the same for both cars.

tman694 · 04-04-2021, 11:21 AM

Yesterday I did my first oil change and changed my diffy and tranny oil.

I used redline MT85.

Thank you for the writeup.

Went to the dealership for the aluminum washer's. Dealerships part manager said they have never brought this part in before.

The shifts are way smoother, less clunking and noise.

More then worth the time.

Tonysz · 10-13-2021, 04:44 PM

Quote:

Originally Posted by 2004YZFR1

Someone pointed out earlier that they could not find the dipstick for the transmission fluid in the automatic. I'm having the same problem. Any help?

Thanks.

I think that it is a sealed tranny, you don't check it or add to it. It has to be flushed and filled, but I am not a positive. But I'm sure some one else must have done this already?

There is no dipstick. You drain and pump to refill. I am trying to find the best way to pump the fluid back in. You can not drain all of it, some is stuck in the converter. I was going to add some know and drive a few hundred miles and do it again.

Tonysz · 11-07-2021, 03:53 AM

My 2009 does not have a dip stick. It is on the side of your transmission pan under the car.

jchammond · 11-07-2021, 06:31 AM

DIY'ing 7A trans fluid, need advice!

Here’s a link with some information, there’s several more out there

Tonysz · 11-30-2021, 08:52 AM

Not sure where to fill the atf on my 2009 370z touring model. I can see a bolt on the passenger side. It looks like 9mm. It is near the front of the car on the right side and up high, is that it?

05-20-2017, 03:26 PM	#212 (permalink)
corrigat Base Member Join Date: Aug 2015 Location: California Posts: 8 Drives: '14 370z Manual Rep Power: 10	Thanks for the write-up Just did my first transmission and diff fluid changes thanks to your write-up. It was a little tricky getting the drain plug off the diff because the tools I had were bulky, but overall super easy and saved me a bunch of money. Used MT-85 up front and royal purple in the back. Drives like new!

02-25-2018, 01:04 PM	#214 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Stock height? I like to drive one wheel up onto a short piece of 2x12 laid flat. This gives my jack just enough clearance to reach the front garage jack point, which means I can lift the entire front end and place both jack stands on the pinch welds at the same time. For the rear, I use the underside of the differential immediately below the drain plug to lift and place my jack stands again on the pinch welds. In order to have enough clearance for my jack, I typically have to stair step the lift and do the front to an intermediate lift height first, then rear to full height, then front to full height. I always use a hockey puck on the jack stand pad - I cut a slit in one to use at the pinch welds. On lowered cars, I usually lift each corner individually (front then rear typically). I use the subframe inside the pinch welds to place the jack stand while using the pinch weld to lift. Body kit or exhaust modifications may additionally alter the approach. For example, I have to stack two pucks on the jack stand pad to clear my Fast Intentions exhaust. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

04-23-2018, 11:19 AM	#215 (permalink)
SG4247 Track Member Join Date: Oct 2016 Location: OKC Posts: 782 Drives: 2010 touring Rep Power: 7842	I just did my 7AT on 4/22/18. Exactly 5 quarts drained out, looked like used motor oil. It has been on the jack stands for two weeks without starting, so a lot of fluid drained out. Car only has 33k miles. Put back 5-1/4 quarts, once up to temp at 104F, about 1/4 of a quart came back out of the standoff pipe. Not a hard DIY, plan to do this again in 10K miles. jchammond and Tonysz like this.

10-12-2018, 02:31 AM	#216 (permalink)
theART Base Member Join Date: Feb 2009 Location: BC Posts: 163 Drives: To Drive Rep Power: 7822	Changed oil in my manual tranny to RedLine MT85 few weeks ago at 42k miles. Old oil looked new, driving on MT85 noticed tranny shifts smoother with less notching throughout all gears. onzedge and ZoomZ like this.

12-15-2018, 04:02 PM	#218 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 14	FSM says it's 2.83 liters (2.99 qts) so you should be fine. I buy 4 and fill it til it starts dripping out. I've used a little of the 4th bottle. I'm not sure what the fsm had in mind with the finger in hole level test . My pinky might fit in there, can't remember if the index fit or not. While you're under you might as well flush/bleed the clutch. It's an easy process. I do gravity feed for most of it. Finish off with a helper to refresh what's left in the small portion of the slave line that above method bypasses. __________________ G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring For sale links

02-25-2018, 10:07 AM	#213 (permalink)
ShockWave Enthusiast Member Join Date: Dec 2011 Location: houston Posts: 303 Drives: 350z Rep Power: 13	any tips on jacking up the car?

12-15-2018, 10:42 AM	#217 (permalink)
Umarali Base Member Join Date: Nov 2017 Location: Tyler, TX Posts: 14 Drives: 2010 370z roadster Rep Power: 7	Just changed my 6MT using redline MT-85 bought from summit racing here in arlington,tx for about $17.85 a quart. DIY was great help. Drained little less than 3 quarts, oil looked new. Has 70k miles, bought at 62k miles. Dont know if previous owner changed it before or not but difference in shifting is amazing. Car was levelled by front on ramps and rear on jacks, filled all 3 quarts without overfill. Thought of putting the used oil to overfill but didnt wanna use old oil so left it at 3 quarts, i hope it has enough oil.

12-19-2018, 02:50 AM	#220 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 14	Look in the dyi/tech section on here (or myg37.com). Techniques are the same for both cars. __________________ G37S Sedan 6MT, Eibach swaybars, Invidia Exhaust, Weaker Clutch Pedal Spring For sale links

04-04-2021, 11:21 AM	#221 (permalink)
tman694 Base Member Join Date: Jul 2020 Location: SK Posts: 2 Drives: 2014 370z Touring Rep Power: 5	Just performed a tranny oil change Yesterday I did my first oil change and changed my diffy and tranny oil. I used redline MT85. Thank you for the writeup. Went to the dealership for the aluminum washer's. Dealerships part manager said they have never brought this part in before. The shifts are way smoother, less clunking and noise. More then worth the time.

11-07-2021, 03:53 AM	#223 (permalink)
Tonysz Base Member Join Date: Mar 2016 Location: Texas Posts: 5 Drives: 2009 370Z White Auto Rep Power: 9	My 2009 does not have a dip stick. It is on the side of your transmission pan under the car.

11-07-2021, 06:31 AM	#224 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	DIY'ing 7A trans fluid, need advice! Here’s a link with some information, there’s several more out there JARblue and old guy like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

11-30-2021, 08:52 AM	#225 (permalink)
Tonysz Base Member Join Date: Mar 2016 Location: Texas Posts: 5 Drives: 2009 370Z White Auto Rep Power: 9	Not sure where to fill the atf on my 2009 370z touring model. I can see a bolt on the passenger side. It looks like 9mm. It is near the front of the car on the right side and up high, is that it?

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