Amsoil Full Synthetic OE, XL, and Signature Series Gas Engine Motor Oils have a different usage in mind. Based on mileage and time allows better value when matched to a driver's yearly or monthly mileage.
Find out what AMSOIL motor oil is needed on your car or truck with the AMSOIL look up guide http://www.amsoil.com/mygarage/vehiclelookuppage.aspx?zo=1122941
