Post by
Pescakl1 »
https://forums.nicoclub.com/pescakl1-u98038.html
Mon Sep 08, 2008 7:08 am
Except if you use the XL line of oil from Amsoil, your warranty is void anyway as the ASL Amsoil oil is not API certified (No starbust on the bottle).
So, at least, use it up to what it can do, meaning extended oil interval, which is one year or 15000/25000 miles, whichever comes first.
Using it for 5000 miles is a waste of money, IMHO, every API SM certified conventional oils can do that.