Logo conveys function and purpose of the product. It demonstrates its association with trucking industry and fuel-saving appeal with color coordination and it's symbol-placing. Also the logo as a whole shows symbol of a heavy powerful vehicle in a non intrusive manner, using "negative" tires and bottom.
Purposely avoided shadows and complex gradients since the logo is designed to work with contrasting backgrounds and various mediums without losing shape or meaning. to make it clean clear and problem free for the printing devices. will also look great on t-shirts, vinyl or even engraved.
(This comment references Entry #2)