Automotic Transmission Life

shumby · 06-29-2011, 10:22 PM

LOL good myth as my SC G37S blew 5th 6th and 7th gears. but this was befor uprev was able to increase the pressures for the trans. I am now on a used trans and it is holding up fine 30000km later but still getting A built trans from sam

Blue370tt · 06-29-2011, 10:35 PM

Shumby, let me know how the new tranny works out as I may try and talk to Sam about one. I am working a deal on a 2012 GTR right now, so if I get it I will be unloading my Z and wont need the tranny.

ChrisSlicks · 06-30-2011, 10:31 AM

The AT is most definitely not sealed, and the flush methodology is clearly spelled out in the service manual. For AT's the service life with the modern fluids can be as long as 100,000 miles, which for most manufacturers that is considered the "life of the car". The oil will only last that long however if it is driven very conservatively, get the oil hot on a regular basis and it will degrade much more rapidly. Regular mountain carving, consider 30,000. If you track the car you ATF may only last 5000 miles. A transmission cooler is a worthy investment in extending the service intervals in that case.

chuckd05 · 06-30-2011, 01:15 PM

All I said was a local Z guy had his tranny go before 20k. No idea why or how but it was at Nissan getting a tranny when I was there. And we discussed it. Not a myth. He was NA and Nissan replaced it.

Blue370tt · 06-30-2011, 01:29 PM

Chuck, I have been following this particular subject for over 2 years, mostly to make sure I dont have any issues on my car. Oddly enough, there are tons of people who make statements like the one you did YET on this whole forum ONLY ONE PERSON and ONE 370 7AT has gone bad.

To me, this is just an example of either jealousy of the 7AT tranny or fear that someone bought the wrong tranny.

If its a problem, and this forum has so many members, why have we HAD ONLY ONE go bad on this whole forum??

P.S. Lots of TT'd and SC'd 7AT's out there now.....and still no issues.

wilsonp · 06-30-2011, 11:44 PM

The 2009 Service Maintenance Guide, even for Premium service, says no AT fluid replacement up to 120,000 miles.

chuckd05 · 07-01-2011, 02:34 PM

Lmao must be jealousy. I will try to get his work order and scan it. Thats hilarious.

A lot Of stuff happens that's not posted on this forum too. I know of several members issues that were never listed here. No transmission problems though.

Z eliminator · 07-01-2011, 06:56 PM

i change mine every year. Its cheap insurance . Not cheap to change but it better than bying a new tranney

Z

shumby · 07-01-2011, 07:00 PM

^^ ya Z i do mine once a year too.

superchargedg · 07-01-2011, 07:07 PM

Quote:

Originally Posted by shumby

^^ ya Z i do mine once a year too.

Shumby you still havent gotten the trans back from Sam......damn

chuckd05 · 07-01-2011, 07:45 PM

my neighbor/friend doesnt have his work order but he told me he has blown 2??? transmissions.. he had a black 370z when the car was first released, than he was in an accident and got a blue one as a replacement, and he told me today he blew a transmission is both cars.. I know for a fact the newest blue one was replaced because my service guy and I had a long convorsation about his car and his transmission being blown as well as cracking something else by or in the tranny, im not sure exactly what as it was months ago and I forgot, and this kid doesnt know much about the car.

He uses nothign but the paddles and abuses the car pretty badly but being NA and blowing 2 transmissions by 20k miles has got to be a tough task to do...

BlueTT this is 100000 percent true and not bashing, hating, or "jelous" of any transmision or model of 370z at all.. just stating that this guy (22 years old) has done.. apparently he blows transmissions for fun i guess?!?!?

Both were covered... His first one by atlantic nissan in coram NY and second by Smithtown Nissan in Smithtown, NY

06-29-2011, 10:22 PM	#31 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	LOL good myth as my SC G37S blew 5th 6th and 7th gears. but this was befor uprev was able to increase the pressures for the trans. I am now on a used trans and it is holding up fine 30000km later but still getting A built trans from sam __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

06-30-2011, 10:31 AM	#33 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	The AT is most definitely not sealed, and the flush methodology is clearly spelled out in the service manual. For AT's the service life with the modern fluids can be as long as 100,000 miles, which for most manufacturers that is considered the "life of the car". The oil will only last that long however if it is driven very conservatively, get the oil hot on a regular basis and it will degrade much more rapidly. Regular mountain carving, consider 30,000. If you track the car you ATF may only last 5000 miles. A transmission cooler is a worthy investment in extending the service intervals in that case. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

06-30-2011, 01:15 PM	#34 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	All I said was a local Z guy had his tranny go before 20k. No idea why or how but it was at Nissan getting a tranny when I was there. And we discussed it. Not a myth. He was NA and Nissan replaced it. __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

06-30-2011, 11:44 PM	#36 (permalink)
wilsonp A True Z Fanatic Join Date: Jul 2010 Location: Virginia Posts: 1,134 Drives: 2009 Touring Sp Nav Rep Power: 17	The 2009 Service Maintenance Guide, even for Premium service, says no AT fluid replacement up to 120,000 miles. __________________ 2014 Cayman S PDK Sport Chrono White/Black Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon Was 1991 NSX Auto Black/Black

07-01-2011, 02:34 PM	#37 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	Lmao must be jealousy. I will try to get his work order and scan it. Thats hilarious. A lot Of stuff happens that's not posted on this forum too. I know of several members issues that were never listed here. No transmission problems though. __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

06-29-2011, 10:35 PM	#32 (permalink)
Blue370tt Enthusiast Member Join Date: Dec 2010 Location: Chattanooga TN Posts: 279 Drives: Nissan Juke Rep Power: 15	Shumby, let me know how the new tranny works out as I may try and talk to Sam about one. I am working a deal on a 2012 GTR right now, so if I get it I will be unloading my Z and wont need the tranny.

06-30-2011, 01:29 PM	#35 (permalink)
Blue370tt Enthusiast Member Join Date: Dec 2010 Location: Chattanooga TN Posts: 279 Drives: Nissan Juke Rep Power: 15	Chuck, I have been following this particular subject for over 2 years, mostly to make sure I dont have any issues on my car. Oddly enough, there are tons of people who make statements like the one you did YET on this whole forum ONLY ONE PERSON and ONE 370 7AT has gone bad. To me, this is just an example of either jealousy of the 7AT tranny or fear that someone bought the wrong tranny. If its a problem, and this forum has so many members, why have we HAD ONLY ONE go bad on this whole forum?? P.S. Lots of TT'd and SC'd 7AT's out there now.....and still no issues.

07-01-2011, 06:56 PM	#38 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,659 Drives: 370 Z 7AT Sports Rep Power: 19	i change mine every year. Its cheap insurance . Not cheap to change but it better than bying a new tranney Z __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

07-01-2011, 07:00 PM	#39 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	^^ ya Z i do mine once a year too. __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

07-01-2011, 07:45 PM	#41 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	my neighbor/friend doesnt have his work order but he told me he has blown 2??? transmissions.. he had a black 370z when the car was first released, than he was in an accident and got a blue one as a replacement, and he told me today he blew a transmission is both cars.. I know for a fact the newest blue one was replaced because my service guy and I had a long convorsation about his car and his transmission being blown as well as cracking something else by or in the tranny, im not sure exactly what as it was months ago and I forgot, and this kid doesnt know much about the car. He uses nothign but the paddles and abuses the car pretty badly but being NA and blowing 2 transmissions by 20k miles has got to be a tough task to do... BlueTT this is 100000 percent true and not bashing, hating, or "jelous" of any transmision or model of 370z at all.. just stating that this guy (22 years old) has done.. apparently he blows transmissions for fun i guess?!?!? Both were covered... His first one by atlantic nissan in coram NY and second by Smithtown Nissan in Smithtown, NY __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-) Last edited by chuckd05; 07-01-2011 at 07:49 PM.

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