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Hello all, I have a 1996 Skyline r33 GTS-T. This question is a two-parter. Firstly, and more simply, my r33 has GT-R Brembo Brakes. I am buying new pads and rotors. Can I correctly assume that any GTR-Brake/Rotor that was originally compatible with the r33 is going to be the same shape/size, regardless of the model? By that I mean, without knowing exactly what GT-R model these Brembo brakes came from, I can safely buy r33 GT-R sized brake pads and rotors and should be fairly safe in them fitting correctly? My second question is a bit more complex. I do not know if the previous owner put in Glycol-based brake fluid (DOT 4) or Silicone-based brake fluid (DOT 5). I did a test, by extracting some fluid from the reservoir and adding water. The brake fluid and water DID NOT mix, implying it is Silicone-based, but also the brake-fluid isn't purple, which is really throwing me for a loop. So, to be absolutely safe, I've decided instead just carry out a full fluid flush and replace with Glycol-based, especially since I am putting new pads and rotors on anyways. However, I am uncertain as to what the best method would be. I have read that I should use denatured alcohol (methylated spirits) to push the original brake fluid out, then use cheap DOT 3 to flush the system, then put in my proper high quality DOT 4 or DOT 5.1 brake fluid of choice. Is this correct? I've never done this before and want to make sure this is a proper method. I've also read that I should use compressed air to fully flush out the denatured alcohol, but I'm sure I understand how that works? Would I just hook up an air compressor pump to the brake fluid reservoir and open all the bleeder valves? I appreciate any/all advice, links and sources, and information you can provide. Thank you

Cant tell difference in brake fluid colour, how much per caliper? I'm going to replace the fluid in the GTR, anyone know roughly how many ml i should pull through each caliper for a flush?