Thanks for the responses. I flushed out the brake system for my GF. I followed a buddies advise who has the same vehicle. I used close to 3 qts for the job and have half a qt remaining. It is tightly sealed, now I need to replace a caliper on my P/U and wanted to use that up. Cost is not the problem, it just irks me to recycle half a qt of brake fluid. OTOH, for $3.99 for a qt of brake fluid I'd rather not screw up a braking system either.