Clutch Fluid or Brake Fluid?

Lot's of contraversary on weather it's better to use GM Clutch Fluid in a manual system or Brake Fluid.

What's the Deal?

[aquaholic]

i know almost nothing about manual trannys but i would stick with the gm clutch fluid. what is the year of the car you are considering doing this to?

[froggy47]

Originally Posted by CAJUN C4

Lot's of contraversary on weather it's better to use GM Clutch Fluid in a manual system or Brake Fluid.

What's the Deal?

I have used the old GM spec, the new (current) GM spec , and 2 or 3 quality brake/clutch fluids (Ford, Prestone, ATE). They all worked fine.

Two things I suggest, frequent fluid change (just the resevoir), I do it almost weekly, takes about 1.5 minutes if I have a sip of adult beverage at the same time.

Use a very high temp (dry rating) fluid. Lately I have been using Valvoline Syn. big silver bottle, good results.

[c4c5specialist]

HI there,
The latest clutch fluid is the best from GM.
Just remember, that clutch fluid has an antisqueak agent in the fluid to inhibit seal squeaking when depressing the clutch pedal.
That is the major difference with the clutch fluid vs brake fluid, as brake fluid does NOT have this additive.
Either one will work, but do NOT USE SILICONE BRAKE FLUID>
Allthebest, c4c5

[aquaholic]

i stand corrected. by the way, i took your advice and i am totally off of the silicone kick. i also did NOT put it in my car.

Originally Posted by froggy47

I have used the old GM spec, the new (current) GM spec , and 2 or 3 quality brake/clutch fluids (Ford, Prestone, ATE). They all worked fine.

Two things I suggest, frequent fluid change (just the resevoir), I do it almost weekly, takes about 1.5 minutes if I have a sip of adult beverage at the same time.

Use a very high temp (dry rating) fluid. Lately I have been using Valvoline Syn. big silver bottle, good results.

What makes it get so Black? I thought it was the Rubber seals deteriorating?

[c4c5specialist]

HI there,
Its called carbon black and its caused by the diaphragm inside the cap.
That leaches carbon which does NOT cause any problem with the fluid, it simply discolors it.
Allthebest, c4c5

Originally Posted by c4c5specialist

HI there,
Its called carbon black and its caused by the diaphragm inside the cap.
That leaches carbon which does NOT cause any problem with the fluid, it simply discolors it.
Allthebest, c4c5

Thank God.....I thought I had another defective M/C. My last one only lasted a little over a year.

Thanx Guy