psuaudi

I know that there are all different kinds from Motul, Pentosin, ATE. I've usually used Valvoline SynPower on my other cars though.

Would valvoline be bad on an audi? If so, have people have problems with noisy clutches using any of the above types of fluids?

Obviously, it needs to stay DOT4 or compatible(such as the SynPower).

tree580

I use Motul with Ferodo pads on stock calipers/rotors...stops pretty damn well if you ask me.

Audi Junkie

DOT 3 fluid retains a high(er) boiling point wet as a function of moisture % than DOT 4 does. Unless you flush it constantly (2 years max) the system would likely have higher boiling point with DOT 3 than 4 over time. I was surprised when I found it out. Better to think of 4 not as better then 3, just different.

EBG 18T [Eric]

Pentosyn Super DOT works great all around.

bla4ck

Motul 5.1 works great for me

MC Hammered

RBF600

psuaudi

if i'm not mistaken, the brake fluid and clutch fluid are the same thing in this car. i read somewhere that someone put in a certain type of brake fluid, and then their clutch seemed to squeek?

Audi Junkie

There are so MANY explainations for a squeaky clutch that are not fluid-based and so FEW (none) that can be explained by ANY brake fluid characteristic. Frankly, there are no explainations or even theories about how that Urban Legend functions on a physical level. So, like any other myth, unless you can test-out some variables or even oft a theory of WHY someone made a connection between a squeaking clutch and a clutch system flush job AND a specific product, a logical person would have to shelve the story. All I can think of that even makes a connection w0uld be that during the fluch, they dripped some fluid through the timing hole on the bell housing and drenching the clutch pad with brake fluid....which would make it eventually dissintergrate.


PS, I can't explain how a brake fluid like SynPower is dual-rated 3&4 the same way I can with gear oil. However, the data I saw about wet boiling points, and how 4 looses WBP faster and farther than 3, was VERY accurate and informative.

Tgr_Clw

Same here.

steveracer

Are there any specifics to bleeding the A4 system??? Can you do it manually?