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  1. For occasional track use , which oil viscosity to use? Using oil data sheet for guidance

    0W-20? 5W-20? 0W-30? 5W-30? 10W-30? I've done 2 HPDEs and oil temps have reached temporarily 275F which is quite high but not sustained. I live in a very hot tropical climate with 90+F ambient temperature on track days. I've been researching into which oil viscosity to use but there's so much...
  2. removing vent scoop under hood for tracking?

    is this a reasonable thing to do? any chance of damage if it rains? any significant cooling/heat management gains?
  3. What is this red tick?

    What is this randomly appearing and disappearing red tick in the speedometer?