So when should I change this oil

[2003TRD]

I have a 2003 CBR 954 that is ridden aggresively on the twisties and has seen a couple of track days at Mid Ohio. I am running amsoil 10w40 motorcycle oil and have about 2K miles the oil (8K on the bike) How long can you run this in an engine that frequents 12K RPMs? I am going to do an analysis on it but I think I am going to try and squeeze another track day out of it. Does anyone have advice based on UOA or personal experience with this?

 

[Chris]

Very good oil selection! I'd say get a little gutsy and go out to 3500-4000 unless the shifting gets bad. That be in my 600-F3's sump right now so I am looking forward to your analysis!