2009 Lexus ES350 80K miles
While replacing the battery, I noticed the brake fluid was at the MIN line. Since the fluid is well over a couple years old, I know the proper way is to dump and replace with new. This is something I would like to wait until my next oil change at the shop. In the meantime, do you see any harm of me adding new fluid just to get it up to the middle of MIN and MAX line?