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| Forum name | Manual Trans - NV-T350 |
| Topic subject | What clutch fluid to use |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i34&topic_id=2564 |
2564, What clutch fluid to use Posted by SilverRS, Mar-28-04 03:50 PM
I want to bleed my clutch, I tried searching but came up with no results. I am not sure what kind of clutch fluid is best for our cars. I have a stock clutch if that makes a difference.
Thanks
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2565, RE: What clutch fluid to use Posted by 95GSEclipse, Mar-28-04 04:03 PM
dot 4 brake fluid thats what they use
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2566, RE: What clutch fluid to use Posted by SilverRS, Mar-29-04 02:22 AM
So just any dot 4 brake fluid will work? How about the valvoline synthetic oil, it say that it out performs dot 3 and dot 4, that is what I use with my brakes.
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2567, RE: What clutch fluid to use Posted by 95GSEclipse, Mar-29-04 03:00 AM
any dot 4 brake fliud will work...I dont know about the sythenitic stuff but i dont see why it wouldnt work...but i also dont see why you would need to use it...the clutch hydrolics dont have to worry about the heat build up the that brakes do....just use the normal stuff if you have it.
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2568, RE: What clutch fluid to use Posted by etx, Mar-29-04 07:59 AM
The synthetic will work, but you need to drain and possibly flush out the entire hydrolic system. You don't want to mix those.
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2569, RE: What clutch fluid to use Posted by SilverRS, Mar-29-04 09:10 AM
So it is bad to mix it with my brake fluid too? If so how do I completely flush my brake fluid? For the clutch I will just go and buy the dot 4 fluid it doesn't cost that much. But now I am worried about my brakes because I added a little of the synthetic to my regular fluid.
EDIT: I thank you all for your responses and helping me out.
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2570, RE: What clutch fluid to use Posted by ner947, Mar-29-04 05:15 PM
DOT 5 brake fluid is sillicon based. it can't absorb water for shit. it also won't boil until your brake calipers are pratically melting. DOT 5 is good for extreme track conditions, only.
DOT 3 and 4 brake fluid is glycol based. it has good water absorbation properties. it has a decent boiling point. DOT 3 and 4 is good for the street.
as long as it's not DOT 5, and it smells like brake fluid, it'll be fine in a clutch line.
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2571, RE: What clutch fluid to use Posted by SilverRS, Mar-30-04 02:45 AM
It doesn't say dot 5 so thats good. But my real concern now is that I mixed the valvoline synthetic brake fluid with my normal brake fluid. Will that cause problems? Should I stop using that brake fluid and go and buy normal dot 4 fluid for the brakes?
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2572, RE: What clutch fluid to use Posted by MCubed45, Mar-31-04 05:07 PM
Originally posted by SilverRS It doesn't say dot 5 so thats good. But my real concern now is that I mixed the valvoline synthetic brake fluid with my normal brake fluid. Will that cause problems? Should I stop using that brake fluid and go and buy normal dot 4 fluid for the brakes?
you only run into problems when mixing different types of fluids. you can mix different brands as long as they're the same type (all dot 3 or all dot 4). mixing dot 3 and dot 4 can cause problems. the chemical makeup is slightly different.
here read this: http://www.stoptech.com/whitepapers/brakefluid1a.htm
As a trailing note on the DOT ratings, if your car was designed for a particular type of fluid, you should make every attempt to stick with that fluid! For example, if your car was delivered with DOT 3 fluid, the internal components of the system (seals, brake hoses, and fittings for example) were specifically designed and tested for compatibility with DOT 3. Because DOT 4 fluids contain a different chemical composition, the system may not necessarily react in a positive fashion to the borate esters floating around in the mix.
In certain cases, just the difference in viscosity of the two different fluids may cause the seals to wear at different rates. What starts as an annoying squeak might eventually become a torn seal or worse. The examples could go on and on, but the message here is this: it’s fine to upgrade from DOT 3 fluid A to DOT 3 fluid B, but you should think twice (maybe even three times) before switching from DOT 3 fluid A to DOT 4 fluid of any sort.
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