Boeing: New plane would be 20% more efficient

SEATTLE: Boeing says any new plane that replaces its hot-selling 737 could be 20 percent more fuel efficient.

Boeing is trying to decide whether to put a new engine on the 737, or make an all-new plane that would be sold around the end of this decade. Jim Albaugh, who runs Boeing Co.'s commercial airplane business, told analysts on Tuesday that the technology should be available to improve fuel efficiency by 20 percent.