53. Location. Texas. Jul 12, 2015. #1. My owner's manual for my 2015 Ford Focus SE recommends 87 octane, but also states that, "Premium unleaded gasoline will provide improved performance and is recommended for severe duty usage, for example a fully loaded vehicle." So I went on the Ford website and the performance and fuel economy figures for
Search by make for fuel efficient new and used cars and trucks 2007 Ford Focus 4 cyl, 2.0 L, Automatic 4-spd Regular Gasoline: View Estimates