C5 / C6 Hydraulic Clutch Fluid Change

[frankmp]

Originally Posted by Red c6

Hey guys on my C6 should I use dot 3 or dot 4 ........some say use dot 4

THe recent flood of threads on this topic seem to indicate DOT4 for the C6? and if so what's the risk of using the wrong DOT3 in a C6 or DOT4 in a C5........

Frank

[Riley P]

The car explodes

[Red c6]

All I could find in dot4 brake fluid was synthetic ,is that going to work.

[Fire22]

Originally Posted by Red c6

All I could find in dot4 brake fluid was synthetic ,is that going to work.

Call your dealer and find out what is recommended. My C6 buddy did that and they gave him the DOT 3. If you decide to change to DOT 4, I don't think this method will work for you, I don't think you can mix DOT 3 and 4.

[Silversurfer]

Page 6-12 of the owners manual states DOT-4

Hydraulic Clutch System
Hydraulic Clutch Fluid. Use only GM
Part No. U.S. 88958860, in Canada
88901244, Super DOT-4 brake fluid.

[Red c6]

Do all Dot4 come in synthetics because thats all I cuold find.

[Red c6]

Just returned from the dealer and he said all C6 clutches are dot4 and brake fluid is dot3.
all dot 4 is synthetic...........now if could only find one of those syringes,anyone know where to buy one.

[ctdrl-1]

I got my syringe at Princess Auto, it was $2 it is called a two stroke oil mixer syringe but it is exactly the same as the one Fire 22 shows in his pics.

By the way fire22 great post again man i love these not only are they good but they are intersting to read keep them coming.

Brent

[Red c6]

Thanks Brent,I was just there today and couldn't find one.I'll try another location

[Fire22]

The dealer gave my friend the wrong fluid for his C6 (DOT 3 GM p/n 89021320), he should have given him Super DOT 4 (GM p/n 88901244). Will get the fluid changed and put the DOT 4 in.