Has anyone ever tried the flush their own brake fluid? I am due for a flush but hate to take it back to the dealer. They have done more damage than good as of late so I am trying to avoid them at all costs. I am looking at buying the Mityvac MV6830 to help me. According to the stats, it pulls 26 in. HG (88 kPa). The other question I have is how much vacuum does the dealer use to flush the system? Are there any special considerations to be aware of with the ABS module?