Traded 09 A/T for 11 M/T --Quick Question
 

Hi all, been away for awhile. Last week I traded in my 2009 SP A/T for a 2011 SP M/T. First time I've ever traded in a car for a new car of the same model but love is love. Anyway was worried when I heard first gear whining after driving for awhile, just first no other gears. I've read a few threads and just to be sure and ease my mind, first gear whine when warmed up is normal, right?

Yes I have OCD, but I love my Z, please help me sleep :eek:

Thank you

I have a similar noise, however there is no problem with the transmission. These manual transmissions are somewhat noisy and unrefined but unless you have issues selecting gears, you are fine!

:iagree:

Normal. They all haven it

Thanks guys, appreciate it, sounds like its in reverse but oh well:tiphat:
Thanks for saving me a trip to the dealership:tup:

One thing I am going to is replace my trans fluid with some Redline Synthetic MTF fluid, there are a few members that have done that swap and report much less noise and smoother shifts so I figure it is worthwhile. Just waiting a few thousand more miles until my engine oil change which is when I'll do the trans fluid change too.

My OCD took over and off to the dealership i went, they were nice enough to drain both engine oil and trans fluid to check for any metal in the fluids. All is well, their GT-R expert explained how the gears were set up and why they sound the way they do. So i will give her(my Z) a bath and smack through the gears with a smile. :driving:

How many miles, Ricky? Give it a little time. Me, I'm usually out of 1st gear so quickly I don't even think I could tell you if it makes noise or not.

just hit 900

That's some serious OCD. lol

Sounds like the dealer treated you right though. Good to hear. :tiphat:

At 900 miles, the transmission is still on the tail-end of wearing in.

So many people think that you break in an engine on a new car. Yes, you do, but you are also breaking in the clutch, brakes, wheel-bearings, axles (some cars), differential(s), and all the gears/bearings in the transmission.

Varying your speed, not loading the transmission/rear-end 100%, not launching or shifting it in a way that would "shock" the drive-line, and making sure to accelerate smoothly AND decelerate smoothly (helps the rear faces of the gears in the drive-line wear in, as well as providing more vacuum in the engine to suck the piston-rings against the cylinder walls) will yield a drive-line that has the most potential to operate quietly.

I know many people say engines break in in a few miles, blah blah blah, but that was not my experience with my Z06. It sooted up the tail-pipes badly for the first 2-400 miles. Burned through about 1/2 quart of oil.

Changed the oil at 600 miles, and it has not used a drop since, and the tail-pipes are properly soot-free even after spirited driving.

I think a lot of "noise" has to do with the break-in process, although the pre-load and after-load on the gears in the transmission, as well as the profile of the teeth, are suspect as well. Not necessarily bad, very likely "nature of the beast" type stuff.

This is what I have heard from multiple engine builders/tuners as well and it's the method I have used to break in new engines.

So far so good -- and on the 370Z, happy to report ZERO oil consumption :tup: