Thread: Synthetic Brake fluid

make sure its 5.1 instead of dot 5. dot 5 is best for non abs set ups using parts that can withstand much higher heat ratings than a stock system. dot 5.1 is best for abs setups using stock parts. i used 5 on my race bike and ended up destroying the brakes because the fluid got so hot that it ate all the rubber seals and stock brake lines. 5.1 is glycol based and does not get nearly as hot.

personally on a street car that doesnt see much if any roadcourse duty i would use dot 4.

"ideally, silicone fluid [DOT 5] should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid. Any system that has used glycol based fluid will contain moisture; glycol fluid disperses the moisture throughout the system and contains corrosion inhibitors. Silicone fluid does not allow moisture to enter the system, but does not disperse any that is already there, either." - wikipedia

pretty much what i said

Originally Posted by darkhorizon

dot 3 and nothing else please.

I am under-educated on brakes. Why dot3? Also, don't f-bodies come with dot4?

Originally Posted by darkhorizon

Fluidics

All GM cars take Dot3.... some motorcycles use dot4.

But dot4 and 5.1 are able to be used as well. Why not use those?

my brake fluid cap says DOT4.

Vw's use dot 4