Brake flush or brake bleed?

Originally Posted by SurfDog

If you are just refreshing your dot 4 (RBF 600 is great stuff) you are primarily trying to get the "wet" fluid out of your lines. brake fluid is super hydrophyllic (absorbent) of water (its designed to pull water out of your system), you need to fully flush your fluid as the water "travels" up the fluid column.

The primary reason to get the "wet" fluid out is that it lowers your brake fluid boiling temp from around 600 degrees down into the mid 400s. (track temps regularly are in the mid 500s)

Road and track crashed the 09 press 370 during track testing from boiling fluid (OEM DOT 3 fluid I believe)

The short answer: Use good DOT 4 fluid and FULLY bleed out your fluid to ensure its "dry" 2 bottles will get it done if your are perfect, so buy 3.

I bleed mine at least twice a year (during track season) and its very easy.

Originally Posted by SurfDog

Dont use a power bleeder unless you are a pro, just have a buddy pump you pedal for you. Power bleeders can damage the ABS system I've heard so are better left to pros. Manual bleeding is a quick job and very DIY easy.