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Recommended Brake Fluid?

6.7K views 11 replies 7 participants last post by  SupraManOcnsd  
#1 ·
Hey guys, just wanted to get some advice. Trying to figure out which brake fluid to go with. I have an AP Racing Front BBK, the recommended AP fluid for street use is a DOT 3 fluid with a 275C boiling point. Now I don't know where exactly I could find that in Canada so I was wondering what a good alternative would be. I've heard some good things about Valvoline DOT 3/4 or some Motul DOT 4 fluid. What do you guys prefer?
 
#2 ·
They are both relatively cheap. Valvoline easier to find in the Statesand cheaper . Motul is the better one. You won't brake fade either way on the streets. Probably valvoline, but if you road course the car, motul 5.1

If a recall valvolines has a 300F boling point
and Motul 5.1. 400F

How does the kit look and work?
 
#12 ·
thats good.... flush the whole thing...See what they have or can order in and check online I order most of the stuff I use and there are a few speed shops local..

Another suggestion is ATE Blue which I believe is in between Valvoline and Motul. It has a good blue look and it will supposedly change color when it has boiled over. Also it will be easier to tell when you switched over after bleeding/flushing.

DO NOT go to DOT 5 for cost and PITA reasons. Dot 5 and Motul 5.1 have nearly the same boiling point -- except motul will absorb water sooner. Defiinately not worth on a street car.
Hmm I need to look into that ATE Blue... sounds cool

I also need to see what motul I used.. I cant rememeber off the top of my head it was awhile ago
 
#7 ·
Another suggestion is ATE Blue which I believe is in between Valvoline and Motul. It has a good blue look and it will supposedly change color when it has boiled over. Also it will be easier to tell when you switched over after bleeding/flushing.

DO NOT go to DOT 5 for cost and PITA reasons. Dot 5 and Motul 5.1 have nearly the same boiling point -- except motul will absorb water sooner. Defiinately not worth on a street car.
 
#10 ·
Do not use DOT 5. It is silicone and not compatible with any DOT 4, 5 or 5.1 (either glycol based or synthetic). DOT 5 has a high boiling point but you must completely flush the system of all other fluid and even then brakes will be spongy (DOT5 is twice as compressable as DOT 3 or 4). DOT 4 Synthetic is essentially the same as DOT 5.1 which is also synthetic and both are compatible with conventional DOT 3 & 4.