I did a front brake job on my Honda a few months ago and now the brake fluid looks sort of dark in the reserve. I had the brake fluid changed a little bit more than a year a go and then when I did the brakes I used a bottle of honda brake fluid and bled the brakes till the bottle ran out. I dont know if this color change is normal or if the honda brake fluid is reacting with the other brake fluid in there? Both are dot3 but the previous fluid was whatever the tire shop had in bulk. Its not black but darker than the old fluid was after a year.