The brake fluid used to flush the system just needs to push all the old stuff out. Once you do that, you have a flushed system and new fluid at the same time.
If your entire system takes X amount of fluid, you only need that amount to fully flush the system. (I usually make sure I have a little more just so my power bleeder doesn't get low)
Last edited by Z1NONLY; 04-28-2015 at 06:17 PM.
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