Brake fluid

[Ands1]

Just gonna give all 4 corners a new set of brake shoes, thought whilst I was at it I may as well change the brake fluid, how much new fluid will I need? how will I know when the old stuff is out of the system? will the old stuff be dirty? any tips on which way round to do it?
Thanks Andy

 

[angus]

If it is quite old I'd expect to see it looking a bit darker, maybe a little cloudier, than the new stuff.

 

[froggy]

Just changed the fluid in my bay, dont worry you'll be able to tell when the new stuff is being bled, its a lot lighter in colour, i used just under a 1 litre of DOT4 fluid

 

[Guest]

if it hasnt been changed in a while definitely use about a litre to flush it and a litre to fill it again, the old stuff will be darker but its hard to notice this change, i think the whole system will hold about a litre or so, so when changin, and youve used a litre youll know its new fluid draining out.