joeltender

Had my passenger cv shaft replaced. Instead of trying to find motul to top up the half quart i threw in lucas synthetic oil stabilizer.
Thought it wouldn't hurt, man wasn't expecting the shifting to be twice as smooth and the 3rd gear crunch to be so minor i can use 3rd again regularly

its gotten very cold in the am over the last month since. still much improved cold shifting. might put in a full quart when i change the fluid again at 190-200mi.
Worth a try if ur 6mt is shifting like s....

MrEous

iTrader: (11)

MT85 worked great for me. Added in poly bushings and a NWP Tq Link and now shifts are even more smooth than some high end manual cars I have recently valet'd...love driving my car.

MaxinO2

iTrader: (1)

I use MT90 and have ES bushings as well and it helped shifts alot. I bet that torque link would do justice.

MrEous

iTrader: (11)

It really does...I've had poly motor mounts too along with the shifter poly bushings and MT85 for awhile but everything got even better after the TQ Link.

A little hard to explain but the best way I can put it is there always seemed to be a little 'give' when you let off the clutch, as if you felt the engine move a little. After the TQ Link, the engagement was much more precise and going into gears is more solid.

DrewSER

Just curious but why are you guys using MT90 instead of MT85?

Rochester

iTrader: (3)

...because MT-85 is relatively new, that's all. I swapped out the Redline MT-90 for MT-85 after it came out. It was simply better gear oil for the Maxima. There have been a couple of threads here on the issue. Search the 5th gen forum on "MT85" or "MT-85".

And what the others have said is true... the NWP Torque Link, ES bushings on the shifter cable and under the shifter assembly, as well as ES bushings in the engine torque mounts. All those things help stabilize the engine/transmission and reduce the likelihood of the 3rd gear crunch.

I was an original owner of a 2003 6MT, and lived with the crunch forever until all those mods. In the end, no more crunch. (Lots of NVH, but that's the price.)

MrEous

iTrader: (11)

D'oh...I checked and it was MT85 I used. Updated previous threads above.
Also FWIW, the shiftice DIY was for MT90 but I'm sure that page was made well before MT85 came out. http://www.shiftice.com/redline_mt90.html
NVH >>> Sloppy shifting

Rochester

iTrader: (3)

NVH in the ride. Shifting is like butter with all those mods, and a STS-mod thrown in as well.

DrewSER

I made the switch over a year ago so I'm very familiar with MT-85. Just wondering why it appeared people were still choosing to use MT-90 (not to mention straight MT-90).

MrEous

iTrader: (11)

Meant I'd rather deal with NVH than to suffer from sloppy shifting.

Rochester

iTrader: (3)

It's human nature to accept the first solution you find. Silver bullets are very enticing.

Yes sir. I agree with that set of priorities.

ranmas2004

iTrader: (2)

I use MT-85 and I have ES shift bushings and ES mounts everywhere. My shifting is really smooth. I still get that 3rd gear crunch a little bit but no where near as much as before.

rebelhell

iTrader: (1)

I am going to be dropping my transmission to replace a worn clutch and figure it would be a good time to replace all of the engine/transmission mounts as well as the shift linkage bushings. Could you help with what bushings and mounts you purchased, as well as where to get them? Am I right in assuming 'ES' is Energy Suspension?