Automatic transmission service intervals

BoneZ · 06-13-2015, 06:51 PM

You'll have to excuse me if this is a stupid question, as it's the first automatic I've owned.

I'm looking in my service guide and setting up the intervals in my car app. I don't see anything that says to replace the trans and diffy fluids. It only says to inspect them every 30000/24.

Do these fluids not need changing?

SouthArk370Z · 06-13-2015, 08:24 PM

I had my 7AT flushed at 20-something thousand miles - mainly to get rid of any crap from break-in. Probably overkill but it did seem to shift better afterward.

For most DDs, I'd say having the 7AT flushed every 50-75k miles should be fine. More often if you drive hard; less often if you baby it. YMMV (probably as many opinions on this as there are people heehee).

BoneZ · 06-13-2015, 08:39 PM

75k sounds good. 85% of my driving I'd highway.

BoneZ · 06-13-2015, 09:29 PM

Now I have to figure out how to check it. I don't see the traditional dipstick under the hood.

SouthArk370Z · 06-14-2015, 06:15 AM

Quote:

Originally Posted by BoneZ

Now I have to figure out how to check it. I don't see the traditional dipstick under the hood.

There is no dip stick for the 7AT.

Awgd8 · 06-14-2015, 07:54 AM

I recommend around 50K miles. At 70k ATF turns brown in color with moderate aggresive driving. I did change mine , EX35 and I have a dipstick. I also flushed it out both at the oil pan and transmission cooler.

I believe the G37 is worth changing ATF using ATF exchanger machine.

EZT · 06-14-2015, 08:04 PM

You can change it yourself, but you'll need the CONSULT tool I believe. Can easily fork out the ~185$ for a dealer to do it for you and be on the safe side. Had mine done around 55k + transmission cooler install.

06-13-2015, 06:51 PM	#1 (permalink)
BoneZ A True Z Fanatic Join Date: May 2015 Location: Atlanta, GA Age: 54 Posts: 9,301 Drives: 2012 Blue BallZ Rep Power: 2684383	Automatic transmission service intervals You'll have to excuse me if this is a stupid question, as it's the first automatic I've owned. I'm looking in my service guide and setting up the intervals in my car app. I don't see anything that says to replace the trans and diffy fluids. It only says to inspect them every 30000/24. Do these fluids not need changing? __________________ *“Happiness is having a large, loving, caring, close-knit family in another city.”*-George Burns

06-13-2015, 08:24 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324199	I had my 7AT flushed at 20-something thousand miles - mainly to get rid of any crap from break-in. Probably overkill but it did seem to shift better afterward. For most DDs, I'd say having the 7AT flushed every 50-75k miles should be fine. More often if you drive hard; less often if you baby it. YMMV (probably as many opinions on this as there are people heehee). BoneZ likes this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

06-13-2015, 08:39 PM	#3 (permalink)
BoneZ A True Z Fanatic Join Date: May 2015 Location: Atlanta, GA Age: 54 Posts: 9,301 Drives: 2012 Blue BallZ Rep Power: 2684383	75k sounds good. 85% of my driving I'd highway. __________________ *“Happiness is having a large, loving, caring, close-knit family in another city.”*-George Burns

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06-13-2015, 09:29 PM	#4 (permalink)
BoneZ A True Z Fanatic Join Date: May 2015 Location: Atlanta, GA Age: 54 Posts: 9,301 Drives: 2012 Blue BallZ Rep Power: 2684383	Now I have to figure out how to check it. I don't see the traditional dipstick under the hood.

06-14-2015, 07:54 AM	#6 (permalink)
Awgd8 Base Member Join Date: Sep 2013 Location: WI Posts: 165 Drives: 2015 Q40 / 2008 EX35 Rep Power: 13	I recommend around 50K miles. At 70k ATF turns brown in color with moderate aggresive driving. I did change mine , EX35 and I have a dipstick. I also flushed it out both at the oil pan and transmission cooler. I believe the G37 is worth changing ATF using ATF exchanger machine.

06-14-2015, 08:04 PM	#7 (permalink)
EZT Track Member Join Date: Mar 2011 Location: Gainesville Posts: 550 Drives: 09 370z Rep Power: 317	You can change it yourself, but you'll need the CONSULT tool I believe. Can easily fork out the ~185$ for a dealer to do it for you and be on the safe side. Had mine done around 55k + transmission cooler install.