Shift your weight onto your elbows as you step back with the other foot and place your feet together. Hold until your form starts to fail or until you are no longer able to keep our abs pulled to your back. Step into the ball with one foot at a time. 1  Equipment notes.
For comparison's sake, most modern trucks manage between 5.5 and 6.5 mpg. For most long-haul truck drivers, an increase in fuel economy of 54 percent would equate to a savings of around $25,000 per year at current diesel prices.
That, suggests Automotive News, might well get it to 30 mpg highway--perhaps for the 2017 model year or thereabouts. Regardless of where and when they come in, you're likely to see those high highway number a lot in 2015 truck ads--despite the fact that they're not representative of real-world mileage for most owners.