does the brake fluid really need changing every two years.
fleet managers do not pay for their vehicles. Every five years is probably about right. IMHO
from the interweb..
American companies agree with you:
www.babcox.com/editorial/bf/bf50412.htm
" .. Statements made by the "Big 3" domestic OEM manufacturers that the brake fluid in their vehicles lasts the life of the vehicle ..
...One of the task force members involved with the OEMs found out one of the OEMs did a study using test fleets comprised of thousands of vehicles from various locations that were approximately 8 years old. They tested the brake fluid for moisture and discovered an average of less than one percent over the entire fleet. .. ... "
www.brakestrips.net/tech_myth_stopper.htm
" ... Then there's the mistaken belief, now earning the distinction of ?urban legend,? that water is brake fluid's worst enemy and the slightest trace of it demands an immediate system flush or dire things might happen. So ingrained is this unwarranted fear, many costly flushes are needlessly performed and any unused fluid promptly discarded lest it absorb water while awaiting a future top-off.
Now, new technology and standards are finally putting the decades-old moisture myth to rest. Especially since today's Anti-Lock Brake Systems and brake fluids are designed to reduce or eliminate moisture related problems. In fact, GM, Ford and Chrysler have no recommendation for brake fluid service based on moisture because it's not considered a safety threat or service issue. ... "