Diesel drivers tend to receive better real-world fuel economy numbers than what is officially estimated by the EPA. For instance, it’s not uncommon for a Volkswagen Jetta TDI driver to claim 50 miles per gallon on the highway, when the official EPA rating is 42. The same was the case for GM engineer Tessa Baughman when she drove a 2014 Chevrolet Cruze Turbo Diesel from Southeast Michigan to her home town of Arkansas, getting a 900-mile range on one tank. That’s an incredible 200 miles over the 700-mile estimate provided by Chevy.
How did she do it? Just by driving five mph under the speed limit. Watch the video just below:
Update: it seems that the video is no longer available due to being marked as private.