Transmission replace under warranty
 

I took my 2013 Z in for warranty before it ran out in 2500 miles, my 6th was grinding when going from 4th. Very quickly was told they will replace it under warranty. I ordered my upgraded CSC and they will put that in then too.
Just wanted to pass the info along in case anyone is having the same issues and say good luck if you take yours in

Nice. I had Infiniti replace my transmission right before I installed the turbo kit. Same grinding but mine was mostly 5th.

I got 5th and 6th gear grinding. Getting my transmission replaced under aftermarket warranty sometime soon.

You have 57500 miles on your 2013? If so, that's impressive!

Powertrain warranty ends at 5yrs/60k miles

you're right, i was thinking 36,000.

I'm about to take my '09 in to the Nissan dealer in Longwood, FL to see about getting my transmission replaced under the extended warranty, which lasts about 20K more miles or 13 more months. I bought mine in the Seattle area with 29K miles on it in March of 2013 (I now have about 69.5K miles). My 1st to 2nd gear started grinding after the car warmed up. I just replaced the transmission and differential fluids this last weekend with Redline MT-85 and although it seems much smoother and quieter now, it didn't fix the problem. I imagine I won't have a problem since my extended warranty covers the transmission (although it didn't cover the $750 CSC replacement 9 months ago). Frustrating, but it will be nice to have a new transmission. I need to wait until I get my Potenza S-04 285/35-19 rear tires put on this coming weekend.

With so many people having synchro problems on the 6-speed MT, I'm surprised a recall wasn't issued. The tranny replacement would normally be around $3K, so obviously Nissan wants to keep costs down and do it on a case-by-case basis.