The Proflex Commander system by Advance Fuel Dynamics is supposed to let you run E-85 in your late model engines. It advertises that it allows you to switch between E-85 and straight gas seamlessly. The benefits are better performance than premium, cooler running and more tolerance to powers adders. However, since E-85 does not have as much energy yield as gas you will burn more per gallon, but it is cheaper. Saw it on Stacy David's Gears show. Just curious if anyone is using it on their hemi.
