What you may have read is that somebody with Motul 600 already in the system only used a quart to bleed the brakes before or after a track day or 2.
I'm not sure how much the system holds... I would think if you needed more than 2, places like Z1 would say that when buying their upgrade kit. I did 2 in mine and it seemed to do the trick. I'm not an expert... Maybe someone will chime in or you could give Z1 a call.
If it's your first track day and it's not too hot that day, you'll probably be fine with OEM fluid. I didn't have the need for brake fluid upgrade or brake upgrade until after my 2nd TD.
An oil cooler might be something to consider too. I actually was more concerned about it than the brake fluid before tracking mine the first time. The oil temp climbs pretty high on our Z's without a cooler.
My thoughts.
__________________
 Swift Springs|265-305 RE-11|Forgestar F14|F.I. TDX S.S. 12" Res."Milled Out"|K&N|SPL|Z1(34 row)oil cooler|Z1 brake upgrade|Hotchkis Zspeed|Team Voodoo|HPDEjunkie.com
|