<img title="Top 10 Most Fuel Efficient 2013 Pickups" src="http://blogs.cars.com/.a/6a00d83451b3c669e2017ee6515027970d-800wi" border="0" alt="Top 10 Most Fuel Efficient 2013 Pickups" class="excerptimg"/>The government collects all the specs each year then offers ratings of every truck sold in the U.S.