fruitcakesa
Top Post Dawg
I was bleeding the brakes and ran out of the Blue dot 4 so I finished up with dot 3. Are they compatible or should I flush and refill with only one?
I agree. When we got our 04, the brake fluid was pretty nasty(probably original).When I sucked out the old fluid, there was still black goop stuck to the sides of the tank. That was only a few years too since we got it in 2010.I think some DOT3 fluids resist water better than DOT4 fluids.
On a car that hasn't had its brake fluid flushed in a while I like to start out with DOT3, leave it in for a week, then re-flush with DOT4 to get all the crap out.
-J