The goal of project 70+/10 has been able to obtain double digit fuel economy at cruise speeds of above 70 MPH with a maximum speed of 75 MPH. Of course these speeds are only used where safe and posted legal. The maximum of to 75 mph was chosen due to the speed ratings on commercial truck tires. The key to this project has been that it takes a lot of parts and pieces all working in unison to obtain this lofty goal.