Burnt brake fluids?

How often do people have to change the brake fluid in the rear bake system? Mine is getting dark awefully fast..

Only once in 3700 miles of ownership. Then again, I use a different fluid than oem. It's blue in color and i believe it has a higher temperature rating for racing so i don't think it needs replacing as often. It's still blue in color.

double0 said:

Only once in 3700 miles of ownership. Then again, I use a different fluid than oem. It's blue in color and i believe it has a higher temperature rating for racing so i don't think it needs replacing as often. It's still blue in color.

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The only time I use the rear brake is on a parking lot or slow maneuvers going downhill on the street etc.
At any higher speeds , as soon as you apply the front brakes (to any firm degree) the rear wheel is either very lightly touching or already off the ground ! So it is relegated to very limited effect. ( I have used it to settle the the suspension some what or limit a wheelie or two)
I sometimes apply I little pressure on the rear brake to aid in settling the back end while de accelerating from high speed,but I NEVER wear out the rear pads.

** On cruisers they generally have a lot more weight bias toward the rear and you can get away with more rear brake. On a race oriented sport bike you should be primarily using the front brake. There is a reason why they put two big rotors and Brembo M50 calipers up front.

I read once that someone asked Kevin Schwantz if he ever used the rear brake while in a race and he replied. Three times. And that he crashed every time!

Just my opinion. Others may vary!


Speedy

Both my rear brake and my clutch fluid have gone almost black in only 3,872 miles... I think it's because they have a lot less volume than the front brake reservoir.

I will be changing to either a Motul race fluid, or the ATE race fluid for my next service and I am contemplating putting larger reservoirs on the clutch and the rear brake at the same time to see if it helps.

I haven't noticed any degradation of the brake or the clutch so far, so hopefully, it's just a color change and won't hurt the performance of the rear brake or the clutch...

mine turned coffee colored by the 600 mile service - pretty normal for Ducati. I flushed and replaced with Castrol SRF on my Multistrada, and it's stayed crystal clear for 5000 miles so far. Will get around to doing the same with my 1299S, but the color of the fluid isn't affecting performance.

Mine is completely black in the rear, both clutch and brake fluid were changed for the 600 mile service because they were too dirty.

I just sucked mine out and replaced just because it looked dirty and was bothering me but I don't use the rear breaks much at all anyways

Saw this thread in the 1199 section - air entrainment seems to be an issue with these bikes (slave/master cylinder), which can cause the early discoloration

http://ducati1299.com/ducati-1199/17371-how-often-do-you-bleed-your-clutch.html

I noticed an unusual amount of air bleeding the clutch and rear brake

I never use the rear brake and the fluid turns pitch black within a week.

if you guys arent using castrol srf brake fluid you are doing yourself an injustice. the only problem is it is sold by liter so its expensive about 80 bucks but you can do a few bikes with it at one time.

specs are amazing.
Castrol SRF Specifications:


Dry Boiling Point - 590 °F
Wet Boiling Point - 518 °F
Fully compatible with ABS braking systems.
Safe for all non-mineral oil-based disc and drum brake systems

Meets or exceeds all DOT 4 specs
Now sold in (1 liter) plastic bottles.

amsoil series 600 is real good so is motul for doing one job.

http://www.ctbrakes.com/brake-fluid.asp

just google srf vs motul or anything else for opinions.

If it's air and/or contamination I don't think it matters - will still get dark. Some claim it's heat but I doubt it

ATE Racing is good stuff and not very expensive

fzr100098 said:

If it's air and/or contamination I don't think it matters - will still get dark. Some claim it's heat but I doubt it

ATE Racing is good stuff and not very expensive

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I used the ATE Super Blue in both my GT2 and my track monster Porsche 944 Turbo; NEVER had an issue with the brakes at the track - The great thing is they produce it in blue and in gold color, so that you can alternate colors between changes... makes it really easy to know when you have all the old fluid out, because you see the alternate color coming out of the bleed nipples.

flobrandx said:

I just sucked mine out and replaced just because it looked dirty and was bothering me but I don't use the rear breaks much at all anyways

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I was always curious to know how it tastes?

i always wanted to try ate super blue. i like the color i may just go on your recommendation shilling. i only want it if its blue can i find that in the us of a

mark419ny said:

i always wanted to try ate super blue. i like the color i may just go on your recommendation shilling. i only want it if its blue can i find that in the us of a

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from what i've heard...the Blue stuff (racing fluid) is no longer available in the USA - it is considerably more hydroscopic, so you need to change it more often than you may like - then again, some of us enjoy flushing the fluids thru

Brembo has a racing fluid, though it isn't blue

RD16RR said:

from what i've heard...the Blue stuff (racing fluid) is no longer available in the USA - it is considerably more hydroscopic, so you need to change it more often than you may like - then again, some of us enjoy flushing the fluids thru

Brembo has a racing fluid, though it isn't blue

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the blue stuff is banned in the usa only because of the color. somewhere in the code it states brake fluid must be clear or amber. reason so you dont put something else in there by mistake. ate makes blue and gold makes doing a flush real easy by sight.

anyway i guess srf is staying

ps i use phoenix systems reverse bleed. very quick and easy i highly recommend it. i have no issues with brake fluid change, nor oil. radiator is another story lol

mark419ny said:

i always wanted to try ate super blue. i like the color i may just go on your recommendation shilling. i only want it if its blue can i find that in the us of a

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Yes.. I will post a link to my go to supplier, if I still have it bookmarked.

Turns out the blue stuff has in fact been banned in the USA.. That SUCKS....