Quote:
Originally Posted by SFV1LE
The OEM rotors seem more durable than others like the Girodiscs from my Evo X. 12 track days and 12k miles on mine, almost all track or canyons, and they're still in good shape. I've used both OEM pads and Ferodo DS 1.11.
I have noticed that with either RB 660 or Brembo Racing fluid, I get some overheat leakage around the reservoir cap on track. Not a lot but still surprising, I check and clean the cap and rubber seal, and still it happens.
Anyone else have this experience? Maybe I need a new cap but it looks fine.
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There's a tiny slit in the middle of the rubber seal, and a tiny groove beneath that seal on the cap. I believe the slit is for relief. The vapor may carry some fluid with it out from the cap onto your master cylinder. I have, as have others in the Gen5/6 had this light leakage. I have been keeping my fluid level a little bit lower from max. And I think the more the brake system is heated, the larger the leakage. I've had it happen no matter the brand of fluid.