An Expediter and his AirTabs

I had the rare opportunity to get my Sprinter into the wind tunnel at a local college to observe what happens before and after the Airtabs, as well as with and without the bug shield and rain guards. What we observed was rather dramatic. Wind resistance and aerodynamic drag is the MPG killer. All other things being equal, like weight of the vehicle, driving speeds, even driving habits, it is wind resistance that affects everything. Driving slower, no jack rabbit starts, using the brakes less, and discarding unnecessary items to reduce weight are all things you can do to...

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