Just realised the other day as I was changing the oil in my track bike that I had probably done less than 200 miles on the old oil/filter..
On the road bike I guess it was probably about every 5000 miles......
What made me realise was that I have owned my car for about 5 years.. I've done the best part of 50,000 miles since I bought it and I never changed the oil once yet!!!!
Yes, I do need to do it but what I realized is that I don't give a fuck about my car!!!!