Quote:
Originally Posted by Qsilver7
BTW...does regular DOT 4 brake fluid turn from it's light amber color to a dark murky color as it absorbs moisture? Or does the darkened fluid occur for other reasons? Obviously if you're using a colored brake fluid (like blue)...this color identification won't apply.
Just some FYI to add to the discussion...especially those that were unaware of the hygroscopic nature of brake fluid and why BMW has the 2 yr recommendation to flush:
(from owners manual)
(from BMW TIS)
|
I have observed brake fluid getting darker over time but I don't know if there is any correlation to moisture or not. Brake fluid gets dark after high temps too (e.g., track days) in my expience.
Since I flush the system before my all too infrequent track days on the 2002 M3, I usually run any extra out of the pressure bleeder through the X5 brakes. An open can of brake fluid is no good unless you purge the air in the container with dry nitrogen.
Use it or lose it is my motto with an open bottle of brake fluid, so I use it all up!
__________________
Kirk
Las Vegas
2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo
2011 E90M3, 6-speed manual
|