Left lane is the fast lane is a myth.Next time you get caught speeding in the left lane,explain to the Officer that it is okay because you were in the fast lane.I wonder what his response will be?I have yet to be on a highway where the posted speed limit was higher if you traveled the left lane as opposed to the right lane.
I travel the right lane as a courtesy to the speed demons,but it is a courtesy,not something that is mandated by some written or unwritten law.