About 5 days ago I went on a little trip with my car and the brakes were feeling sluggish, I had to push on them relatively hard for the car to brake. I pulled over to a gas station and all they had was dot 3 brake fluid, so I bought it and put about 6 oz in the reservoir. I know that my car should use dot 4 synthetic fluid, will having the dot 3 mixed in damage my brake system? Will I need to bleed the whole system and fill it with dot 4? Thanks in advance,
Brian.
Brian.