If the epa catches you cheating the penalties are Huge! Kia just got caught so they have to send debit cards to ALL their owners every year in the amount that makes up the difference between their exaggerated claims and the new official epa #. Plus a fine! I doubt Ford lied. I just wonder why no one else has been able to hit that #. Its probably a case of designing to the test.
Look at how the price of Diesel has risen since GM and Mercedes among others fed the diesel car craze of the 80's. Now they are really sticking it to the truckers, 40-50 cents gallon higher than unleaded. And i read somewhere diesel takes less refinement than gas. Feeding government waste by the gallon!