MPG Improvements 2008-2012
BMW 328i from 19/28 to 24/36 Dodge Challenger from 13/18 to 18/27 Hyundai Accent from 24/33 to 30/40 Hyundai Elantra from 25/33 to 29/40 Kia Sorento from 16/22 to 21/29 Mercedes C350 from 17/25 to 20/29 Subaru Impreza from 20/25 to 27/36 Volvo S80 from 16/24 to 20/29