Originally Posted by 503lsVtec
Wax actually does make a difference to mpg while at highway speeds. Smoother surface = less aerodynamic drag = less energy to propel vechicle = better mpg.
Bhwhahaha, your coefficient of drag is going to remain the same at the speeds your vehicle can travel regardless of the smoothness of your paint surface :rofl:.
Things that will change your coefficient of drag are; bumpers, lips and wings. Pretty much any actual modification to a body panel.