I put in some Castrol Super Response or something along those lines. Dot 4 fluid. Got it for under $10 for 500ml.

Im happy with it for just a road car.

Theres another Castrol Dot 4 fluid in a red bottle. But its not as good apparently. for a couple buck more the silver bottle castrol fluid seems to do the job very well.

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RS Liberty - Because WRX's are only good for parts...