Do I understand you post that you only changed the oil 3 times in 11,844 miles?
Phew, you had me worried there for a minute. I thought I was WAY overdue on my oil changes. I'll keep my bike if I can't sell it and I certainly don't want to be doing anything wrong Mx wise. I am very anal when it comes to stuff like that.
Frank, you are fine. 7500 is under ideal conditions which according to the API is about 2% of driving. 3750 would be Severe Service Limits.
With using AMSOIL oil and filter, you are perfectly fine to take it to 7500 so you are more than safe at 5000.
Just for a little reference, these are the change intervals on my bikes, verified by oil analysis... 8000/1 year on the Yamaha.. 16,000/1 year on the Honda and 10,000 on the Harley.
The Harley is used like a Mack truck. It is an Ultra, I never pull the lowers even in 100+ heat, pull a 4x4 trailer full of oil and frequently go down the road at well over 2000 lbs.
Enjoy and ride on with confidence as you are using The Best oil and filter available.
Oil, is the Lifeblood of your engine. The oil filter, is the Kidney that keeps it clean.
The Best isnít cheap
Cheap isnít The Best