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10-26-2015
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#1 |
 Join Date: Aug 2006
Location: McLean, VA
Posts: 3,723
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Clutch fluid and brake fluid
From quick research, it seems clutch fluid is basically DOT 3 or DOT 4 fluid. I was just curious what other ZR-1 guys are running in their cars. GM Hydraulic fluid? DOT 3, 4, 5 or 5.1?
Same question with brake fluid. DOT 3? 4? 5.1? Seems some European brands are offering 5.1 which are silicone based and yet ABS friendly. Opinions? |
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10-26-2015
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#2 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: Clutch fluid and brake fluid
Quote:
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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10-26-2015
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#3 |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Clutch fluid and brake fluid
Not arguing w/ Dom, but IIRC, DOT 3 is what GM called for, and what I'm using and have used for 8 years now. With regular maintenance, I've no complaints.
However, I don't track my car (yet) either; so there's that, and I'm open to suggestions... 
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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10-26-2015
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#4 |
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Join Date: Jul 2013
Location: Atlanta
Posts: 451
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Re: Clutch fluid and brake fluid
Clutch fluid and brake fluid are the same stuff, and it's a good idea to not intermix - use all DOT3 or DOT4 (don't use 5). If you track the car...and I mean road courses where you actually use the brakes...use DOT4 with a boiling point as high as you can get, preferably over 500 degrees. I just flushed mine with Ate blue and hammered it all day long at Road Atlanta, with zero issues.
If you use 3 on track, you'll get a few laps and then your brakes will fade badly. Don't do it. 
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Mark '90 ZR-1 #1322 Daily Driver, 64k and counting Black/Gray [IMG]http://i208.photobucket.com/albums/bb49/mlitherland/IMG_0326_zps3d50d8cb.jpg[/IMG] |
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10-26-2015
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#5 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: Clutch fluid and brake fluid
One thing I do is change the fluid in both at least once a year or when it starts to turn yellow/dark. I hate to see dark fluid in a nice car when the hood is opened.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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