Best clutch fluid????????????
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Melting Slicks
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From: western colorado colorado
Best clutch fluid????????????
I have a RPS single disc clutch, fluid is a bit dark looking, can't remember what fluid to use....Is it DOT 4 brake fluid or syntetic fluid???????THANKS
Le Mans Master
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From: Tampa Fl
St. Jude Donor '12-'13-'14
I use namebrand off the shelf DOT 3 on the brakes and the clutch. its not the best, but I change the reserve often because its easy.
Last edited by phils C5 vette; Jun 14, 2009 at 04:48 PM.
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Melting Slicks
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From: western colorado colorado
Melting Slicks
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From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
Go with a high temp fluid. Like Motul 600 or Wilwood 600exp. They cost more but have a higher boiling point. At least look at the boiling points of the fluids you're considering and select the highest temperture.
Le Mans Master
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From: Waldorf MD
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Burning Brakes
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ATE Superblue:
Features/Benefits of ATE Super Blue Racing Brake Fluid:
* Blue tint of fluid makes bleeding brakes easier
* Ideal for race use, excellent choice for street driven vehicles, too
* Boiling point minimum: 536 degrees F
* Wet boiling point minimum: 388 degrees F
* Viscosity at -104 degrees F: max 1,400 mm 2/5
* Designed to last up to 3 years under normal highway driving conditions
Motul 600:
Motul RBF 600 Specifications:
DOT Rating - 4
Dry Boiling Point - 594°F
Wet Boiling Point - 421°F
Compatible with other fluids - Yes
Container - 16.9 fluid ounce (500ml) plastic bottles, factory filled with nitrogen to preserve freshness
Wilwood 600:
EXP 600 Plus has tested to 626 degrees F with a wet boiling point of 417 F. These numbers far exceed any DOT or SAE specifications
Melting Slicks
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From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
Here's a heads up on the Wilwood EXP. The bottle lists dry temp at 594*F and wet at 399*F. It's also not compatible with any other fluid. I use it and was surprised the advertising didn't match the bottle. If I had to do it again I'd go with the Motul.
Burning Brakes
Joined: Apr 2009
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I've used both Motul and ATE Superblue for brake fluid and found them both to be excellent. I alternate in my TT truck Superblue one cycle, Motul the next, because it makes it really easy to see when you've completed the fluid exchange 
I will likely run Motul in my clutch.
I will likely run Motul in my clutch.
Last edited by TurboBerserker; Jun 15, 2009 at 11:15 AM.
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St. Jude Donor '12 thru '26
Sometimes it is hard to find a dealer who stocks it.
Wish I could find some...
Pro
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Melting Slicks
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Drifting
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Le Mans Master
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From: Longview Texas
I think they are referring to additives that lubricate seals, extend seal life, and reduce air entrapment. Clutch travel tends to be more than brake pistons.
GM makes the dealers order the fluid by the case, and it does not sell very fast, so it can be hard to find. I had to call around to several dealers in my area to locate some. Fortunately, there are several small towns within 10 miles of where I live. One dealer had ordered a case, and still had the full case of 12.
Drifting
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From: cruising between USA and Canada... SAVE THE WAVE!
best clutch fluid
I think the best clutch fluid is clean clutch fluid.
You can spend as much as your wallet can afford on the "high performance" and expensive stuff, but if you put clean new stuff in, ANY clean new stuff in, on a regular basis via the "ranger" method, your clutch will be happy.
It's so easy to flush the reservoir on a regular basis I don't see the point in putting in expensive stuff for the short term anyway.
and that is just my opinion
You can spend as much as your wallet can afford on the "high performance" and expensive stuff, but if you put clean new stuff in, ANY clean new stuff in, on a regular basis via the "ranger" method, your clutch will be happy.
It's so easy to flush the reservoir on a regular basis I don't see the point in putting in expensive stuff for the short term anyway.
and that is just my opinion
Supporting Vendor
Joined: Jun 2008
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From: tempe Arizona
Unless you're boiling the clutch fluid (?really?) all this high temp stuff is not doing you any good. A more (affordable) stable fluid with a higher wet boiling point would be my choice. Reason: less moisture contamination with the DOT3 means less chance of any rusting of the slave parts or hard line if there is any.
Often the darkness comes from the type of seals used on the slave. This is not uncommon and new fluid can change in a matter of days.
Often the darkness comes from the type of seals used on the slave. This is not uncommon and new fluid can change in a matter of days.
Burning Brakes
Joined: Apr 2009
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Unless you're boiling the clutch fluid (?really?) all this high temp stuff is not doing you any good. A more (affordable) stable fluid with a higher wet boiling point would be my choice. Reason: less moisture contamination with the DOT3 means less chance of any rusting of the slave parts or hard line if there is any.
Often the darkness comes from the type of seals used on the slave. This is not uncommon and new fluid can change in a matter of days.
Often the darkness comes from the type of seals used on the slave. This is not uncommon and new fluid can change in a matter of days.