With the resurrection of the once dead "Brake Fluid" post I decided to take it upon myself to go ahead and do a half-assed flush on my 2014 Mazda3. It has 55,000 milers on it with about 70% city driving and 30% highway. I also live in the valley of the sun in Arizona so typically we get about 0% humidity, which means I most likely don't have much moisture in my fluid. The results were pretty decent. It was definitely dirty compared to the nearly clear fluid that comes new in the bottle but surely a far cry away from gray or black. Maybe seeing this might prompt you to take a look at yours, maybe not.
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