Mr. Truck, an astute expert in anything automotive, recently checked out our EconoMaxx fuel saving device. This is the second video of a 3-part series he completed to explain a little bit of the science behind the product, as well as an interview with Brian Leuenberger one of the inventors. Unlike many other products Mr. Truck gets sent that promises fuel savings and performance increases, Mr. Truck chose our product because it actually works and delivers as promised! Stay tuned for the third video in the near future!