mixing/bleeding brake and clutch fluids.

[clownface]

okay i have some questions about bleeding my clutch and brake fluids. I just went and got some valvoline synthetic better then dot 4 brake fluid for ABS or something like that, a big ole thing of it. 5 bucks autozone. Ive got a couple questions. number one-does brake fluid double for clutch fluid? number 2-is it bad to mix brake/clutch fluid, like if i mixed that valvoline i got with w/e is already in there? or do i need to drain it all the way first?

 

[Morphius]

Originally posted by clownface
dot 4 brake fluid for ABS

I can't speak for 2G's, but 1G's call for DOT 3. Best check your manual to be sure.

Originally posted by clownface
number one-does brake fluid double for clutch fluid?

Yes, one and the same.

Originally posted by clownface
number 2-.....................like if i mixed that valvoline i got with w/e is already in there? or do i need to drain it all the way first?

You shouldn't mix the different "DOT" fluids.

 

[clownface]

okay, thanks. using a dot 4 or something wouldnt hurt it would it if it calls for dot3? thats just means at least use dot 3 right? I guess since i have no idea what kinda fluid is already in there i need to drain it first then bleed it, how exactly do i drain it? just pump it and let it come out of the bleeder valves till it stops coming out?? or is there a better way to do it?

 

[clownface]

does it matter what order i do the brakes in?

 

[jrivard00]

No, DOT 4 is different then DOT 3 so you shouldn't mix it. Yes, it matters the order that you bleed the brakes. I believe it is back right, front left, back left, front right for the bleeding order.

 

[clownface]

okay, so what i really need to know now is how do i get all the old clutch and brake fluid out so i can put the new stuff in, i dont know whats in there so i guess i have to drain it all before i put that new stuff in. if i just stick a bucket under the bleeder valves will it all come out of there or do i need to do it another way? does anyone know for sure if thats the right order?"back right, front left, back left, front right for the bleeding order."

 

[clownface]

okay i just got that bottle of brake fluid and it says it exceeds dot3 and dot4, it dosnt say its d0t3 or dot4 on the bottle anywhere i just says it can be used as a replacment for both and its better then both, it also says its compatible with conventional brake fluids, so with all that in mind does it mean i dont need to completely drain my brake/clutch fluid already in there before i ad it?........still need answers to my last post, hehe.......

 

[Defiant]

You have the right order on the brake bleeding with ABS.

DOT 3 and 4 are mixable, according to the Prestone DOT 4 bottle here. DOT 5, silicone brake fluid, is NOT mixable, although it is supposed to be "compatible in DOT 3 & 4 systems."

I'd take back whatever you have and go with straight DOT 4.

The clutch system isn't as fussy as the brake system is.