Quote Originally Posted by WILLY
I Use 93 Octane With Power Mode On All The Time And I Get The Best Mileage This Way.and The Vx Performs Much Better.
I'm with Willy on the power mode on all the time. I have noticed the same thing....that my gas mileage improves when I leave the power mode on. Although I differ with Willy in that I use regular 87 octane. I can't tell a difference by using the higher octane in my VX.