Motul RBF 600 vs. Castrol SRF DOT 4
05-25-2017, 10:19 PM
#1
Le Mans Master
Thread Starter
Motul RBF 600 vs. Castrol SRF DOT 4
Question for those who track. I'm racing this weekend (road course), but taking my Camaro as the vette is still too new. I always use the Motul 600 DOT 4 in my 1LE Camaro, has never let me down. I'll be changing the fluid again soon in the Camaro and want to also upgrade the brake fluid in the vette. Is the ridiculous price of the Castrol justifiable or should I stick with the Motul? I know because of Castrol's much higher boiling point, you should change it every 2 years while the Motul is ok 3-4 years (depending on amount of track use). Please share your thoughts as I'll be ordering the fluid soon.
05-25-2017, 10:29 PM
#2
Pro
I did some research on this recently and the opinions I gathered was no so I stuck with the Motul.
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LT4CMG (05-25-2017)
05-25-2017, 10:46 PM
#3
Racer
I like SRF. I used Motul RBF 600 before I switched to SRF. The Motul let me down at NHMS, I wasn't driving a Corvette at the time. My opinion is all brake fluid is cheap for what it does. SRF has been the best for me, at some point I want to try Endless, I've read it maintains better pedal feel.
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LT4CMG (05-25-2017)
05-25-2017, 10:57 PM
#4
Le Mans Master
Thread Starter
Just want to clarify. Niether my 1LE, nor my Z51 have the carbon ceramic setup (obviously, as I don't even think that's an option on the Z51). I have a couple Z28 and Z06 buddies with carbon ceramic who swear by the Castrol stuff, but I'm not lucky enough to have that incredible setup. So my question pretains to the non ceramic setup, if that makes a difference in how you answer. Thanks
05-26-2017, 12:54 AM
#5
I used Motul 600 in my 14 1LE. For the Grandsport I decided I would try the SRF given the higher speeds I now have to haul myself down from. Are you actually entering a race? Or is this a track day? If racing I would go SRF. If your at he pointy end of the advanced open passing group, SRF. Anything else Motul.
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LT4CMG (05-26-2017)
05-26-2017, 01:17 AM
#6
Le Mans Master
Thread Starter
Track day. 6-8 20 minute runs on Saturday then the same on Sunday.
05-26-2017, 07:56 AM
#7
Melting Slicks
I run the Motul and will until I'm a good enough driver that it doesn't work for me anymore (that will also be track dependent, some are just much harder on brakes than others).
No matter what though 2, 3, and 4 years is too long of a change interval for a car that is seeing the track in my opinion. I would prefer a change at least once a year if you are on the track.
No matter what though 2, 3, and 4 years is too long of a change interval for a car that is seeing the track in my opinion. I would prefer a change at least once a year if you are on the track.
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LT4CMG (05-26-2017)
05-26-2017, 09:33 AM
#8
Le Mans Master
Thread Starter
Well, I did my camaro at the end of the season in 15 before I put it away. Didn't do a whole lot of tracking last summer and I'll change it after this weekend. So I agree, I don't wait too long between changes.
05-26-2017, 01:09 PM
#9
Racer
No matter what though 2, 3, and 4 years is too long of a change interval for a car that is seeing the track in my opinion. I would prefer a change at least once a year if you are on the track.
I agree with z28. One of the reasons I went to SRF is I reduced my full fluid flush to once a year. With the Motul, I did this at least twice. The SRF wet boiling point inspires confidence. I do bleed occasionally, but only flush once a year. With this in mind, the SRF doesn't cost anymore then the Motul over a year.