typically natural oil can go 7500 miles just fine, consumers have been misinformed with the 3000 mile oil change.
remember, cheap oil filters are not a good practice, quality oil filtration is very important, deserves your upmost attention.
same holds true for air filtration on a vehicle.
AMSOIL makes the highest quality oil | air filtration products on the planet..
AMSOIL distributes quality filtration products by MANN and WIX as well, for vehicles AMSOIL has not tooled up for due to low demand or are unique applications better served by the other brands.
AMSOIL is best known for the 25,000 mile or once a year oil change. Both the AMSOIL full synthetic motor oil and AMSOIL EaO oil filter last 25,000 miles or one year.
AMSOIL makes a formulation lasting 35,000 miles or 1 year, the vehicle owner simply changes the AMSOIL EaO oil filter at 25,000 miles, tops off with AMSOIL SSO full synthetic motor oil.