I qualify it with lifetime and post-modding numbers. Usually opened up a few ears when I tell them I went from 36 to 41mpg. Well, at least it did when gas was $3+ a gallon.
Yeah, cold weather is sucking my numbers down to No Man's Land but my last refill was a shocker. I scratch it up to more aggressive conservative driving and better route selection to work. At least, that's my story.