brake fluid recommendations

Chris_B

DOT 5.1 is chemically compatible with DOT 4, but it's not ideal to mix them. 5.1 has a lower viscosity specific to ABS systems. The thinner fluid helps the valve response, yet it doesn't provide the same pedal feel as the best DOT 4 fluids.

If you track the car at all, it's worth spending a few extra bucks for a top fluid (like the best, Torque RT700) as you won't have to flush it nearly as often. Some teams I work with are getting 3-4 times the life, a few even more. Their crew is very happy they don't need to flush every day at the track.

If your car rarely sees the track, look for the cheapest fluid with the same specs as the Motul product. After all, it will be the same exact fluid made in the exact same UK factory as theirs is. Only the bottle is different.

Chris

synolimit

rbf600 is best hands down. in this case i wouldnt reinvent the wheel and just get what works.

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13 370z-

JARblue

While the RBF600 is great fluid, I don't think there's any doubt that there are better fluids out there. Castrol SRF and Torque RT700 both have higher wet and dry boiling points

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Chris_B

AND better feel (due to a higher specific gravity and less dissolved air), and better reserve alkalinity, and more stable pH, and better resistance to the negative effects of moisture absorption (hygroscopicity), and...

RBF600 is definitely old school at this point and, for what it is, overpriced. The exact same fluid is found for half the price elsewhere. RBF660 is a little better (also made for Motul by the same company), but does not approach SRF, much less RT700.

Chris

synolimit

Maybe I'm slow, but how exactly does it "not approach" when its over for the number that counts?

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13 370z-

synolimit

Let's say all around then. RBF600 to me is $12 or something a bottle while SRF is $35 but I only see 1000mL so you have to pay out $70 and RT700 is $34. And for the Castrol SRF the dry is actually lower by 4 degrees unless you're doing hour long racing wheel to wheel like the Pirelli world c or conti with doran, save the money. 20min sessions aren't going to show any improvement. My 0.02

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13 370z-

KaienZ34

Do you know what "cap" for the Motive power bleeder is needed for our cars?

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JARblue

The three prong bleeder cap. Motive Part #1107.

Ford Three Tab Brake Bleeder 0107

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KaienZ34

Thanks for all the input guys. I couldn't find what I wanted local, so I had Z1 throw some motul rbf 600 in with the xp10's and xp8's I ordered.

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JARblue

You said it was the "best hands down". That's all I was responding to. I mean, I use the same damn fluid. It's the best for me (and probably most any one in a Z). But the fact remains, there are better fluids. However much, cost does not factor into how they perform in your vehicle. If you had said "best performance for cost" I would not have said anything. 'All around' is a bit vague and doesn't necessarily imply factors outside of performance are included

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synolimit

Yes, money out of pocket, performance, using for what we all do here (don't see to many pros here in PWC or conti series) it is. A 20 min session for us isn't going to show a performance gain getting fluid that's a few degrees better. I get what you're saying though.

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13 370z-

MaDMaXX

So let's say i want a good quality fluid, for a car i appreciate the brakes on, occasional hard drive, possibility of a track visit once a year.

Trying not to spend a bunch of cash, but don't want regular stuff either...

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'04.5 350Z - Very Motordyne.

Rusty

For the money, Motul 600. Then go up from there.

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"The Difficult Anytime, The Impossible By Appointment Only"
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Chris_B

For the money, you can use any of these fluids that are the exact same fluid as RBF600, yet some are priced lower (some under $8/bottle):

In alphabetical order: AP Racing, Brembo, EBC Brakes, Elf/Total, Eneos, Ferodo, Gulf, Millers Oil, Pagid, Pentosin, PFC, Silkolene, StopTech, Tarox, Tilton, Wilwood

Just look at the specs to see which one is the match for the 600 (too detailed to type it all here). These are not all of them, just what I have had verified since about 9 months ago. Most of these brands also have versions that match up with the 660.

Chris

Rusty

For me. Motul 600 is easy and cheap to get at the motorcyle shop.

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浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html