About Motul RBF 600

[Mr2raw]

I'm about to do some brake upgrades such as SS brake lines and race-grade brake fluids for track use.

After doing a lot of reading, the most popular brake fluid seems to be the Motul RBF 600 for track use. When I looked at the picture of the bottle on the Motul website compare to other motorsport websites that stocks Motul RBF600, the labels look a little different. The one on the Motul site has a grey label while other website has the yellow label. I am sure is the same fluid but just different packaging. Can anyone confirm? I would like to make sure before I start purchasing it. Please refer to the 2 links below for a comparison of the labels.

https://www.motul.com/us/en-US/products/rbf-600-fl-12x0-500l-us-can

vs

https://www.steeda.com/motul-100949-mustang-brake-fluid

Are there other options for race-grade brake fluids out there? If so, why would one use that above the Motul RBF 600?

Thanks guys

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[Specracer]

We use RBF600 in our race cars. Selected it as a good balance between performance and price.

As for other options, here is a great chart outlining some of the performance of the best racing fluids

https://www.pegasusautoracing.com/group.asp?GroupID=BRAKEFLUID

 

[NightmareMoon]

Those are both the same fluid, just one pic is an older label.

600 is good, but needs to be changed a lot more often than the stock stuff because unlike the stock stuff, this stuff absorbs ambient moisture very rapidly. RBF 660 is a little better heat-wise but costs more.

Castrol SRF doesn’t need changing as often, but also costs more.

Just make sure the fluid is fresh before you go to the track. Its not fun to loose your brakes chasing down a GT3 only because you didn’t flush your specialty brake fluid like you knew you were supposed to.

 

[Mr2raw]

Those are both the same fluid, just one pic is an older label.

600 is good, but needs to be changed a lot more often than the stock stuff because unlike the stock stuff, this stuff absorbs ambient moisture very rapidly. RBF 660 is a little better heat-wise but costs more.

Castrol SRF doesn’t need changing as often, but also costs more.

Just make sure the fluid is fresh before you go to the track. Its not fun to loose your brakes chasing down a GT3 only because you didn’t flush your specialty brake fluid like you knew you were supposed to.

Thank you for the clarification on the difference in labels.
How often do the RBF 600 needs to be changed? After every event? Every few event?
Since I'm just getting into the HPDE stuff, so I am not sure how many events I will do per year. I don't drive the car much on a regular basis. If the fluids don't need to be changed after every 2-3 events or so, and I barely drive my car. Is changing it once a year good enough then?

 

[NightmareMoon]

Thank you for the clarification on the difference in labels.
How often do the RBF 600 needs to be changed? After every event? Every few event?
Since I'm just getting into the HPDE stuff, so I am not sure how many events I will do per year. I don't drive the car much on a regular basis. If the fluids don't need to be changed after every 2-3 events or so, and I barely drive my car. Is changing it once a year good enough then?

Generally bleed it /before/ each day of track use, if its been a couple months since the last bleed, or you tracked the previous day. Damn car weighs 3700 lbs and has 400+ ho, so its hard on brakes. Frsh fluid is one of the most important safety considerations when tracking a mustang.

Then maybe a bleed every 6 mo if just street use.

The fluid absorbs humidity with time, not miles, and after a day of track use you may also have cause some bubbles or debris to collect so you want to bleed to clear that stuff out before the next track day.

 

[Mr2raw]

Generally bleed it /before/ each day of track use, if its been a couple months since the last bleed, or you tracked the previous day. Damn car weighs 3700 lbs and has 400+ ho, so its hard on brakes. Frsh fluid is one of the most important safety considerations when tracking a mustang.

Then maybe a bleed every 6 mo if just street use.

The fluid absorbs humidity with time, not miles, and after a day of track use you may also have cause some bubbles or debris to collect so you want to bleed to clear that stuff out before the next track day.

Thats good to know. Thanks for the advice.

 

[TopJimmyCooks]

What NightmareMoon said, but to add…at Summit Point this Aug, I had two friends get soft pedal / lost pedal. Both said that their dealer put DOT4 fluid in, but they weren’t sure what kind. After swapping to SRF, they had no issues at VIR or Road Atlanta. I run Motul 660 but SRF is about the same. Brakes (pads, fluids) are not an area to go cheap. I flush twice a year. Buy it in multipacks online, save $$.

 

[Mr2raw]

What NightmareMoon said, but to add…at Summit Point this Aug, I had two friends get soft pedal / lost pedal. Both said that their dealer put DOT4 fluid in, but they weren’t sure what kind. After swapping to SRF, they had no issues at VIR or Road Atlanta. I run Motul 660 but SRF is about the same. Brakes (pads, fluids) are not an area to go cheap. I flush twice a year. Buy it in multipacks online, save $$.

Pads wise, from reading G-loc and Pagid are very good pads. How about rotors? What brands are out there? I am looking for rotors that I can use for the street and the track so I can swap pads out for street and track sessions.

 

[TopJimmyCooks]

Pads wise, from reading G-loc and Pagid are very good pads. How about rotors? What brands are out there? I am looking for rotors that I can use for the street and the track so I can swap pads out for street and track sessions.

I use the OEM rotors, purchased from LMR. They are a fraction of the $$$ for Girodiscs. The Girodiscs are better, I just don’t have it in the budget until I decide the OEM are inadequate.

 

[Flyhalf]

Motul.600 or 660 (the better version) are 2 great.option

The best for wet boiling point is the SRF very popular

Endless Racing Brake Fluid RF 650 https://a.co/d/h1xUigC is what i use in mine.
Is the best in terms of recurrent heating.

For track use all those are great options.
Chang eit once a year and you good to go!

 

[Mr2raw]

Is the Motul RBF600 compatible with the stock brake lines?

I did a lot of reading on the different SS brake lines available, and it seems to be the case that the fitment seems to be an issue. What brand of SS lines are people running? Have people run into issues installing the SS lines? Brands like Steeda and Goodridge seems to have issues with install.

I just want to make sure the Motul is compatible with the stock lines if I can't decide on which SS lines to buy before the HPDE event.

 

[PaddyPrix]

Is the Motul RBF600 compatible with the stock brake lines?

It is.

 

[TopJimmyCooks]

Hey bud,
Yes, I am running G-Loc R-12 in front, R-10 in back. So far the wear on the rotors is minimal after 2-1/2 events. (I call one a 1/2 event because my daughter drove it, haha, not carrying as much speed). I have a set of Carbotechs on hand to replace them to see if they are better, but after I bought them I learned that Carbotech and G-Loc are virtually the same pad.
After that I might try either the Pagids or DTC 70/60 just for comparison sake. I think Flyhalf likes the DTCs and he's no joke.
Keep in mind, I'm running 200TW tires though (Bridgestone Rival 1.5S). You are running stickier tires (100TW). You might want to go with more pad.... either R-14/R-12s or DTCs. And if Alessandro chimes in, do whatever he says.

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