ST Oil and brake Fluid

[fiestaz]

I’m looking to pick brains about what Oils you all use your STs.

I completed a track day on Friday at Luddenham Raceway (highly recommend, great fun) and the oil is now black as black after 4000kms of driving and the track day. According to the dealer sticker it has Castrol in it. I want something good quality as I do plan on doing track days (maybe a 2-3 a year).

Next thing is, on this track day I appear to have boiled my brand new brake fluid. Brakes currently feel like my work Iload. I’m pretty limited knowledge wise in this area, but I know you can get brake fluid with a higher temp rating. Any recommendations here?

Thank you!