Hello?
All these posts and no one has mentioned the TSB for a mis calibrated dipstick. Dont remember the the PN's off hand, but the "incorrect" dipstick shows full at a hair over three gal.
According to the TSB, it is "not an engine damaging level", and that it is not necessary to take action. I think it refers to early 24v engines.
In other words, no matter the dipstick, pour three gal. in an leave it. In mine, 3 gallons actually shows a little over full just pouring in, but pour a quart in the filter and then fill the crank case and its right on the money. Think of the extra quart as added cooling.