Several online sources (auto parts store , garages ) have recommended flushing
replacing brake fluid at intervals of 24 months / 24000 miles citing fluid
andmoisture retention as primary reasons....and to purge any air as
secondary reasons, unless the system has been opened.
I also looked at the Owners manual for two different GM
vehicles, a Chiltons manual and a factory service guide.
None of these specified periodic brake system flushing although
the service guide gave some very general guidelines.
However, not a whole lot of shops advertise the need for
this procedure... If you take your car into a Jiffy Lube (just for
example), they will replace oil, filters, belts, transmission fluid,
but never say a word about brake fluid. If it was that necessary
and part of a recommended service program, it seems to me that
a lot more tune and lube places would be advertising this service.
So what is the truth here ??? Do mechanics and engineers
see a need for regular, planned brake fluid changes ?? Is this marketing
hype?? Is the difference somewhere in the middle ??
Appreciate your thoughts and wisdom on this matter !!
Thanks in advance !!
ps.... raybestos has a brake system learning center at
It also has some training programs.... I could only find
a backdoor link at http://www.raybestos.com/OnLineTraining/abs-177.htm
but this might help someone.