Here is the short answer: Yes, brake fluid can go bad. Brake fluid absorbs moisture, which reduces its performance. For that reason, it’s best practice to change brake fluid every two years. The AAA published a study, stating that brake fluid is the most often missed maintenance item by drivers.
Despite the hassle and cost of unplanned maintenance, too many of us neglect our vehicles until something fails. These eight often overlooked services can not only help avoid expensive repairs, they can boost vehicle performance, too. Change Transmission Fluid Changing motor oil is the poster child for good vehicle maintenance, and for good reason. But