Coolant Overflow Cap Redesign?
 

The 2011+ Z's use a "pressure style cap" on the coolant reservoir similar to the one on the radiator.

Does this new style cap fit on the older style (2009-2010) reservior bottle?
The black screw on cap that I have on my '09 looks like it came from a vitamin bottle :eekdance:

Any pictures of it?

The newer reservoirs are pressurized, unlike the older ones. Hence the difference in caps and reservoir construction.

Why did they go to a pressurized design?

I was wondering the same thing.
Environmental (antifreeze is some pretty nasty stuff)?

Sounds like my old cap style might be prone to leaking or bursting...

Related to the water/oil cooler I bet.

i was wondering about the same thing. i have a 2013 and im planning on swapping out the plastic coolant reservoir to an aluminum one that people are getting from this one forum member that makes them i guess.. will it still work without causing any harm?

http://img.tapatalk.com/d/13/07/08/yta5uvyq.jpg

heres a pic of the coolant reservoir upgrade.

Here's another coolant tank and oil catch can option

Who makes these sweet coolant tanks? I want one!

The 1st one us made by a person here I believe and the 2nd one is made by ARC its a catch can and a reservoir tank all in one. They are both the same price. I just got the ARC and its very nice! Comes with everything u see in that pic also.

Now someone make a nice power steering reservoir please!!

no **** it comes with a Z? damn i'm gonna need to pick this up as i could use another one

What ru talking about here? What comes with a z

it was a funny, if that catch can comes with everything in the picture i'll take a second car.