[Flat Six]

Note: Bleeding and flushing are not the same procedure. Bleeding removes (compressible) air from the brake hydraulic system. Flushing replaces old fluid (which, due to the hygroscopic nature of brake fluid, has likely absorbed moisture) with fresh, new fluid. Of course you'll want to make sure you've bled your system once you've flushed with new fluid. Typical brake fluid flush interval is every two years, regardless of mileage.