That was just on gasoline. Add another 6 cents for diesel fuel, not to mention the "color coding" for road (taxed, low-sulfur) and off-road (non-taxed, higher-sulfur, farm and construction use) diesel.
It started out as red for road use, blue for off-road, and green for military use. However, when the blue dye was mixed into the diesel, it turned GREEN! (I guess the pion in charge was absent that day in grade school when the art teacher taught them "Yellow and Blue make GREEN!)
Today, only the off-road is dyed, and it's red....