Clutch fluid and brake fluid

[secondchance]

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?

[XfireZ51]

Originally Posted by secondchance

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?

Use Dot 4 for both.

[Paul Workman]

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...

[8cam]

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.

[We Gone]

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.