I'm thinking of going to AMSOIL 5w30 with their filter; and doing a oil change every 6 months or 7500 miles (~twice a year for me). Anyone else had good results with this kind of oil and schedual? The AMSOIL 5w30 is suppose to be able to go 25,000 miles or 1 year between changes and the filters 6 months or 12,500 miles.
P.S. sorry for th hijack