Redline mt90 problem?

Filipe · 03-31-2016, 03:30 PM

Quote:

Originally Posted by Elmo370z

Fsm is a very useful tool, if you dont plan or seriously mod your car or track it often then i wouldn't vary off oem spec.

Spooler · 03-31-2016, 03:49 PM

I use 75w90 for this reason alone. This issue is not new to me. The older cars had the exact same issue all the way back to the 1970's. 75w90 synthetic fixed it up every time.

Elmo370z · 03-31-2016, 08:54 PM

i run motul diff, power steering, trans, and brake fluid. Everything runs like a champ.

2011 Nismo#91 · 04-01-2016, 07:41 AM

I used MT85/MT90 mix and it feels much better the before (32Kmiles). Swap it out for a lighter weight if you are not liking it, not all transmissions are exactly the same and you just may have gotten a bad batch. Not much else you can do except try again or deal with it.

AV8rZ · 04-01-2016, 10:16 AM

I replaced my transmission fluid about a month ago with MT85 and noticed this exact stiffness right away. It's been driving me nuts but I just assumed this was normal. I have also noticed that once it is warmed up 1st to 2nd is very clunky. It bothers me to the point I am debating on switching back to factory fluid. i just passed 12k miles the other day and was not like this at all before the fluid change.

Spooler · 04-01-2016, 12:03 PM

Quote:

Originally Posted by AV8rZ

I replaced my transmission fluid about a month ago with MT85 and noticed this exact stiffness right away. It's been driving me nuts but I just assumed this was normal. I have also noticed that once it is warmed up 1st to 2nd is very clunky. It bothers me to the point I am debating on switching back to factory fluid. i just passed 12k miles the other day and was not like this at all before the fluid change.

Change it to synthetic 75w90 of your choice. I use Amsoil.

AV8rZ · 04-01-2016, 12:10 PM

Thanks Spooler, I appreciate it!

03-31-2016, 03:49 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,176 Drives: 2013 Nismo 370z Rep Power: 2684395	I use 75w90 for this reason alone. This issue is not new to me. The older cars had the exact same issue all the way back to the 1970's. 75w90 synthetic fixed it up every time. Last edited by Spooler; 03-31-2016 at 09:44 PM.

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03-31-2016, 08:54 PM	#3 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	i run motul diff, power steering, trans, and brake fluid. Everything runs like a champ.

04-01-2016, 07:41 AM	#4 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,412 Drives: slowly Rep Power: 40571	I used MT85/MT90 mix and it feels much better the before (32Kmiles). Swap it out for a lighter weight if you are not liking it, not all transmissions are exactly the same and you just may have gotten a bad batch. Not much else you can do except try again or deal with it.

04-01-2016, 10:16 AM	#5 (permalink)
AV8rZ Base Member Join Date: Mar 2015 Location: The other LA Posts: 192 Drives: 40th Build#374 Rep Power: 12	I replaced my transmission fluid about a month ago with MT85 and noticed this exact stiffness right away. It's been driving me nuts but I just assumed this was normal. I have also noticed that once it is warmed up 1st to 2nd is very clunky. It bothers me to the point I am debating on switching back to factory fluid. i just passed 12k miles the other day and was not like this at all before the fluid change.

04-01-2016, 12:10 PM	#7 (permalink)
AV8rZ Base Member Join Date: Mar 2015 Location: The other LA Posts: 192 Drives: 40th Build#374 Rep Power: 12	Thanks Spooler, I appreciate it!