Whats next for me?

[Joe1]

I'm at 5k miles into my interval. My last analysis is below. Should I get my money's worth and extend out to 8-10 k interval?

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=3;t=001009

 

[Amkeer]

I would change it at 6000. Twice a year for me with m1.