how often should i change my motul brake fluid. I autocross occasionally, otherwise i keep it on the street.

j

 

Do you have the 5.1 or the RBF600? Just bleed it every month or so. Since it's more of a race fluid, it's prone to develop air bubbles over time (rather than heat causing it).

 

rbf600

 

You can keep it in there a long time. I use the 600 in all my cars, and the only time I bleed it is at a road course. No need for an autox. I had one car sit for a year due to a blown motor, and then drove it at a track event with fluild that had not been bled for about 18 months and it was fine. It does not seem to absorb water like some other brands.