I agree, lots of people will post numbers just to post numbers. With no description of what the conditions were when they got those numbers, if there even real. It’s kind of sad to see people try to brag or just flat out lie to total strangers just to look knowledgeable on the subject. Your right, 20mpg is a lot to get out of this truck but better to shoot for the moon and miss than to just sit around and gripe about the price of gas. If I end up with a consistent 18 that’s still a considerable improvement.