Hello, my first post here and looking for advice. I part-own a 2012 ex-Academy car which is used mainly for track days. The engine is still standard Academy spec, although there are other modifications to the car. We did 5 track days last year and a few hundred road miles. Over this time we had minimal oil collect in the catch can (which surprised me), however, following a day at Silverstone this Monday the can is now around 20% full. Could anyone advise on what is "normal" here? Thanks in advance Steve