They didn't call those bands "rage against the machine" and "public enemy" for nuthin now did they? I mean, in all seriousness, why be so serious? Simple points need to be understood, not simply dismissed out of hand. In theory everything the government or your employer tells you is true. In reality, they have alot to gain from asymetric information distribution, both in terms of negotiating financial outcomes but also in terms of maintaining their political power base.
All you have to do is look at how much gas you put in the damn thing and divide by how much youve driven since you last topped up. Not a deep investigative effort