So it says DOT 4
#1
So it says DOT 4
So my clutch reservoir cap has DOT 4 on it. Does this mean GM put DOT 4 brake fluid for the brakes and clutch?? IE, meaning I don't need to change out the fluid before my track event from DOT 3 to DOT 4
#2
Turn 12!
#3
Race Director
I use Prestone DOT4, $5 at Wally world
#5
Race Director
Many of the C6 Z06's clutch fluid was black in the reservoir within a short time of build and did it through it's life. Did Chevy fix this on the C7's?. Maybe not, thus change the fluid as best you can.
#8
Ok what I was trying to say is, is the brake fluid DOT 3 or DOT 4? Normally (like the c6) it was the same fluid from the factory as the clutch fluid therefore, since the clutch resevior says DOT 4 on it, can we assume the brake fluid is also DOT 4?
#12
Race Director
Given the manual stating DOT 3, I think you can count on the brakes having DOT 3 fluid.
Based on my C6 Z06 road circuit track experience, I would highly recommend Motul RBF 600 brake fluid for the braking system. Regardless of brand, go with a brake fluid (not Silicone) with a dry boiling point of 600* or higher. They will likely be DOT 4.
I use the Prestone DOT 4 for the clutch as it is much cheaper than the 600* DOT 4's, but has a lower boiling point. I have not had any clutch fluid problems (drag racers may have had those problems) with boiling, etc, but did with the brakes with fluid under 600* boiling point.
Based on my C6 Z06 road circuit track experience, I would highly recommend Motul RBF 600 brake fluid for the braking system. Regardless of brand, go with a brake fluid (not Silicone) with a dry boiling point of 600* or higher. They will likely be DOT 4.
I use the Prestone DOT 4 for the clutch as it is much cheaper than the 600* DOT 4's, but has a lower boiling point. I have not had any clutch fluid problems (drag racers may have had those problems) with boiling, etc, but did with the brakes with fluid under 600* boiling point.
#13
Given the manual stating DOT 3, I think you can count on the brakes having DOT 3 fluid.
Based on my C6 Z06 road circuit track experience, I would highly recommend Motul RBF 600 brake fluid for the braking system. Regardless of brand, go with a brake fluid (not Silicone) with a dry boiling point of 600* or higher. They will likely be DOT 4.
I use the Prestone DOT 4 for the clutch as it is much cheaper than the 600* DOT 4's, but has a lower boiling point. I have not had any clutch fluid problems (drag racers may have had those problems) with boiling, etc, but did with the brakes with fluid under 600* boiling point.
Based on my C6 Z06 road circuit track experience, I would highly recommend Motul RBF 600 brake fluid for the braking system. Regardless of brand, go with a brake fluid (not Silicone) with a dry boiling point of 600* or higher. They will likely be DOT 4.
I use the Prestone DOT 4 for the clutch as it is much cheaper than the 600* DOT 4's, but has a lower boiling point. I have not had any clutch fluid problems (drag racers may have had those problems) with boiling, etc, but did with the brakes with fluid under 600* boiling point.
#14
Safety Car
Track use requires changing to brake fluid with a higher boiling point but GM continues to specify dot 3 for street use because it is less prone to absorb moisture than dot 4*
*this was mentioned at a Bash seminar but there are conflicting reports on the hygroscopic qualities of dot 3 vs dot 4.
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*this was mentioned at a Bash seminar but there are conflicting reports on the hygroscopic qualities of dot 3 vs dot 4.
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Last edited by ZL-1; 01-07-2015 at 12:38 PM.
#15
Race Director
That probably is the case but the Motul RBF 600 lists it as DOT 4 on the container, although the dry boiling point is 592* or some number just less than 600*.