Joe_G

I'm out of my fav Motul 600 and I'm offended by the $10+ shipping costs per container, so my speed shop sold me some Wilwood 600.

It doesn't say on the can what DOT it is...I need DOT 4, as I want to use it in my clutch. What lousy packaging and I can't find it on their website either. It does say not to mix it with other fluid...is this stuff synthetic?

Do they really mean don't mix it? I have to mix it in my clutch as I dont' have a bleeder. Or do they mean it won't have the same super high boiling point if you mix it.

Anyone use it and can tell me what it is?

magnetic1

It is at least DOT4. It says not to mix, becuase you can contaminate the new fluid by mixing it with sub-par fluid.

http://www.wilwood.com/Products/006-...-EXP/index.asp

Joe_G

Yes but is it synthetic? I recall that you cannot mix synthetic with regular or it just doesn't work...and bleeding my clutch is nigh impossible with headers so I don't want to screw it up.

redvetracr

all brake fluid is synthetic...

froggy47

I think you mean silicone, it's not silicone unless it says that.

Joe_G

AHHH you're correct. Is that DOT 5?

geez I'm out of the loop with brake fluid anymore. lol

Kanmer

Yes. DOT 5 is Silicone. Do not under any circumstances use DOT in your car. I am sure you already know this. You can use 5.1 but no no on the 5.

Joe_G

Right - This is what has me worried...the bottle doesn't say what DOT it is but to not mix it....if it's DOT 5 I'll be screwing up my slave cylinder which is NOT a cheap fix.

CamaroAJ

i use it in my car, no problems. there was a chart on here somewhere that listed all the wet boiling points and that was on the list of fluids that members here used.

Bill Dearborn

I use it also. It is regular Brake Fluid. Whether DOT 3 or DOT 4 it doesn't matter. DOT 4 has a higher wet boiling point than DOT 3 but you are only interested in the dry boiling point anyways. Just make sure the bottles you have are hermetically sealed. I purchased some a couple of years ago that had the twist on tops like oil bottles have and there was no hermetic seal under the tops. Since the twist on top had been on tight I used the fluid but I boiled the fluid at the next track event. That was something I had never done before. Next batch I got had the twist on tops but were sealed properly and the fluid behaved properly. Their 570 fluid is good also. I use it more often than the other stuff because it is cheaper. Most racers use the 570.

Bill

sothpaw2

Where is a good source for the Wilwood fluid? Raceshopper?

magnetic1

Some shops still have GS610 left. That's a very good fluid too. I believe Wilwood bought the rights to the formula.

FasterIsBetter

I've been using the Wilwood 600. It is DOT 3/4 compatible. I'm using it in both the brakes and the clutch, no problems.

Joe_G

Excellent. Thanks much, this answers my queston.

Best,
Joe

Bill Dearborn

I get mine at the local circle track racer supply store. I am one of the few roadracers that goes there. The guys running the local dirt and asphalt tracks all run on tight budgets so prices are reasonable.

Bill

ghoffman

I have it and use it. It is really good fluid, $20 a bottle.

redtopz

I just starting buying this stuff because its easy/quick to get from summit or jegs.

0Todd TCE

Exceeds DOT5.1 and all DOT3/4 ratings. However the cautionary note about mixing it is not that it will somehow 'hurt' you but it will greatly lower it's boiling point.

Fluids such as this have an extremely limited working life- like the weekend. After that they are working at a lower bp due to both moisture contamination and cross contamination. In short it is best when used from a sealed container and then added to a fully dry system. Sure, you can mix it with the old Castol or Valvoline and try to guess when the fluid looks clearer but just having some of the old in there means it's no longer at it's peak operating range.

Unless you truly need this level of protection (i.e. you're boiling some good quality stuff now and really are flushing that as often as you should be if so) then buying this won't make much sense. Or make your brakes brake any better. Short of a few circle track pavement customers I sell to I don't move much of this to anyone. For most the conventional 570 is more than adequate and at $6 a better value.

Of course I can get both for you if you insist.

71corv

Use the Wilwood 600 year round. Track the car 4 or 5 times a year and bleed the brakes before each event. In between events, I leave the fluid alone. No problem on the street. Use Prestone Dot 4 for the clutch. Also bleed this (Ranger system) before each event. I get the brake fluid at Zip Products.

Gene