bgiere

SRF...why bother with the others. Bleed it a few times a year. It is less expensive than using the other fluids and it works! If you include your time in the equation there is no question about it...

hacker-pschorr

Last time I talked to Mark Anderson he is still using Super Blue.

Need to keep in mind he doesn't use the brakes very much

schwank

Ate Typ 200 Gold in 944 Cup car with Porterfield R-4 race pads

JW in Texas

There's a reason Cup cars come w/SRF, it's the best! Flush it once a year & forget it. Like Brant said, if your time is worth anything, it ends up being the cheapest one out there in the long run.

blake

SRF for my street GT3 (dedicated track car)

-B

Weston

My 944-Spec race car gets Prestone DOT 4... it's cheap, readily available, and the 500F+ dry boiling point works pretty damn well. My previous track car had twice the power:weight ratio and lower corner entry speeds (ie a hell of a lot more braking), but it also did quite well on this fluid. It doesn't make sense to me to shell out the $$$ for fancy fluid when much cheaper stuff has always exceeded my needs. Most of the times that I've had brake issues, it was the pads, and I was usually just braking more that I should have been anyway.

mark kibort

He uses them more than me!

VERBOTN

SRF, one less thing to deal with. Rock solid

Gary R.

Used GS610 for the past year, brakes have been great. I bleed/semi-flush in a pint every few months to keep it fresh. I would do the same if I used SRF or anything else, but that's me. I really never had issues with Super Blue but it seemed to bleed out "dirtier" so I assumed it was getting a bit cooked. The GS610 is only slightly discolored when I bleed.

Veloce Raptor

Maybe that's because he's faster...





Professional Racing and Driving Coach

Glen

SRF, lasts forever. Use no other.

Giacomo

Is this really the case? You never bleed and just change once a year in a race car!? If so, this is by far the cheapest option and I will definitely make the change to SRF.

Bill Verburg

I know that you know better than that, All DoT 3, 4, 5.1 brke fluids are hygroscopic, SRF is just at the good end of the curve in this regard.

SRF is great stuff but it's not necessary to pay the SRF price to get SRF performance. You can do 2 Motul 600 fluid changes for the cost of 1 SRF change and w/ biannual changes(which won't be needed for many users) the wet performance difference approaches zero

CASTROL SRF 590°F 518°F $69.99/33.8oz.
MOTUL RACING 600 593°F 420°F $15.00/16.9oz.

each car setup stresses the brakes to a different extent, for some the high end stuff is absolutely neccessary, for others an annual flush w/ AT200(blue or yellow) is fine, each owner needs to evaluate their own needs. Certainly at the very least an anual flush is necessary but in stressed systems much more frequent changes are needed.

Besides cost the other issue w/ SRF is that though it can be mixed w/ other DoT 3 & 4 types, it looses much of it's ability to deal w/ moisture. SRF needs to be kept separate from others to attain peak performnace

boss351

Question here. I have seen multiple warnings about not mixing SRF with other brake fluids. I run Motul, but say I wanted to switch to SRF, what's the correct procedure to make sure there is no mix? Is there anything special to be done to make sure all the old fluid is flushed out, even in the ABS mechanism? Do you guys somehow suck out some of the old fluid from the reservoir?

I use a Motive Power bleeder set up for flushing/bleeding.

Gary R.

GS610 is 610F Dry, 421F Wet, just for comparison. I believe the Motul may be cheaper by the oz. as the GS610 bottle is tiny.. have to look at the ML label. Where is a good source for Motul, a sponsor here?