Just been after some brake fluid and found that Eurocarparts are doing 1 litre of ATE Super Blue for £10 (if you buy or reserve online). Its not as good as Motul RBF600 or 660 but at that price its cheap :D http://www.eurocarparts.com/ecp/p/car-accessories/engine-oils-and-car-fluids/auxiliary-fluids/brake-fluid/?130339010 Also their Triple QX Oil is cheap for 5 litres http://www.eurocarparts.com/car-engine-oils
Ate blue is a fantastic fluid I have it in my car and tend to use it when I'm fitting sets of my braided lines.
How much would I need to do a full flush on the 850?
Last full flush I did after fitting new lines on the wife's alfa 156 took a little over 2 liter. And that was with having to do them twice as air got trapped in the abs unit
I used under a litre (including the clutch system) on my 850 using the Gunson 'Easibleed' system, changed to DOT5.1.
Good stuff this Super Blue. I agree that Motul is better, I tend to alternate between the two so you can tell when the system is flushed through.
For the price I got it for it was well worth it :D